Writing to a text file on the website server

**acoder** · May 15 '08, 09:58 AM

Not possible with JavaScript alone, but possible with Ajax. Use a server-side script to append to the file and use JavaScript to post to that script.

**pronerd** · May 15 '08, 10:15 PM

Originally posted by Mikey123

and it seems this might actually be possible after all

How?

Originally posted by Mikey123

Can someone clear this up for me, is it possible

Acoder, as usual, is correct. JavaScript is a client side language. Meaning it runs on the client, in this case the browser. It can not write to disk on a remote server. It can not even run on the server. HTML and or JavaScript can be used to send a file to the server, but you would need server side code there to receive it and write it to disk for you.

If you know of some way around this we are all ears.

**rnd me** · May 16 '08, 03:15 AM

Originally posted by pronerd

How?

Acoder, as usual, is correct. JavaScript is a client side language. Meaning it runs on the client, in this case the browser. It can not write to disk on a remote server. It can not even run on the server. HTML and or JavaScript can be used to send a file to the server, but you would need server side code there to receive it and write it to disk for you.

If you know of some way around this we are all ears.

[HTML]

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dt d">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>javascri pt-only file writing</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<h1>javascrip t fileIO demo</h1>
<b>
javascript can use standard http methods like <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html">GET, PUT, and DELETE</a> to create, modify, and manage files on a remote server. The only configuration needed on the server, is the allowance of public or user-based write permissions.

this can be done on window iis server by right-clicking a folder in the IIS web site folder-view.
chmod can be used on unix machines.

if you use apache, then you will need a bit of server-side code called a <a href="http://httpd.apache.or g/docs/1.3/misc/FAQ.html#putsup port">put handler</a> to catch the PUT requests. (<a href="http://hpwww.ec-lyon.fr/~vincent/apache/mod_put.html">m odule here</a>)
</b>
<br />
<hr />
<br />

open <a href='newPage.h tm' target="_blank" >my new page</a> in a new tab/window.
<br />
<br />

<textarea rows='10' cols='80' id='userValue'> Hello World</textarea>
<br />
<br />

<input type='button' value='Save' onclick="doSave ()" />

  &nb sp;
<input type='button' value='Load' onclick="doLoad ()" />

<script type='text/javascript'>

function el(tid) {return document.getEle mentById(tid);}

function IO(U, V) {
//LA MOD String Version. A tiny ajax library. by, DanDavis
var X = !window.XMLHttp Request ? new ActiveXObject(' Microsoft.XMLHT TP') : new XMLHttpRequest( );
X.open(V ? 'PUT' : 'GET', U, !1);
X.setRequestHea der('Content-Type', 'text/html')
X.send(V ? V : '');
return X.responseText; }

function doSave(){
IO("newPage.htm " , el("userValue") .value );
}

function doLoad(){
el("userValue") .value = IO("newPage.htm ");
}

</script>

</body>
</html>[/HTML]

**acoder** · May 16 '08, 10:02 AM

Interesting, though it could pose a security risk, so should be for trusted users only.

This could be the subject of an article (hint, hint ;))

Writing to a text file on the website server

Writing to a text file on the website server

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