How do I make a simple Password field... More.

Wayne Davis

I want to password protect the continued running of a section of javascript.

What I need is for the user to see a login field, they type a code in, if it
is good, the script continues, if bad, it stops dead.
I would like to base the password on julian date so some example numerical
calcs (so I can see how they are structured in Java) would be handy.

Also, how do I time out a group of statements after a preset amount of time
like 1 minute or so.

I am not a Java programmer, but if examples are shown, I can usually figure
out the specific details.

THANKS in advance.

Jul 20 '05 #1

Subscribe Reply

3943

Stuart Palmer

Problem with JS passsword rotection is that someone may be able to read and
work out the password as they can grab your code even if it's calculated. I
would suggest having the password verified serverside myself.

Stu

"Wayne Davis" <wa********@hot mail.com.NOSPAM > wrote in message
news:vdvVa.4015 $Ye.3093@fed1re ad02...

I want to password protect the continued running of a section of javascript.
What I need is for the user to see a login field, they type a code in, if it is good, the script continues, if bad, it stops dead.
I would like to base the password on julian date so some example numerical
calcs (so I can see how they are structured in Java) would be handy.

Also, how do I time out a group of statements after a preset amount of time like 1 minute or so.

I am not a Java programmer, but if examples are shown, I can usually figure out the specific details.

THANKS in advance.

Jul 20 '05 #2

Wayne Davis

I will be using a webpage encrypter on the html. That should protect it
sufficiently no?

"Stuart Palmer" <tr**********@y oucant.com> wrote in message
news:bg******** **@sp15at20.hur sley.ibm.com...

Problem with JS passsword rotection is that someone may be able to read and work out the password as they can grab your code even if it's calculated. I would suggest having the password verified serverside myself.

Stu

"Wayne Davis" <wa********@hot mail.com.NOSPAM > wrote in message
news:vdvVa.4015 $Ye.3093@fed1re ad02...
I want to password protect the continued running of a section of javascript.

What I need is for the user to see a login field, they type a code in, if it
is good, the script continues, if bad, it stops dead.
I would like to base the password on julian date so some example

numerical calcs (so I can see how they are structured in Java) would be handy.

Also, how do I time out a group of statements after a preset amount of

time
like 1 minute or so.

I am not a Java programmer, but if examples are shown, I can usually

figure
out the specific details.

THANKS in advance.

Jul 20 '05 #3

Lasse Reichstein Nielsen

"Wayne Davis" <wa********@hot mail.com.NOSPAM > writes:

Please don't top post.

I will be using a webpage encrypter on the html. That should protect it
sufficiently no?

No. Any encryption where the client can decrypt the contents unaided
(as it must to use the page) can also be made to show the decrypted
page.

I bet I can break the encrypter in at most 15 minutes, if I want to
(and probably a lot faster).

/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

Jul 20 '05 #4

Wayne Davis

What is "top post"?

And when I say it is encrypted, I mean the WHOLE PAGE is an encrypted
Javascript. You can read it, but I don't think it would help you. So I
think giving me examples in plain Javascript would suffice.

Below is a sample webpage that says: "Hello There" in the middle of the
screen. This looks like it would thwart most attempts to "break" it. No?
Take a crack at it. I'll post the ORIGINAL page as (I) wrote it later.
--------------------------------------------------------
<SCRIPT LANGUAGE="Javas cript">
</script>
-------------------------------------------------------------

"Lasse Reichstein Nielsen" <lr*@hotpop.com > wrote in message
news:k7******** **@hotpop.com.. .

"Wayne Davis" <wa********@hot mail.com.NOSPAM > writes:

Please don't top post.
I will be using a webpage encrypter on the html. That should protect it
sufficiently no?

No. Any encryption where the client can decrypt the contents unaided
(as it must to use the page) can also be made to show the decrypted
page.

I bet I can break the encrypter in at most 15 minutes, if I want to
(and probably a lot faster).

/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

Jul 20 '05 #5

LuSiVe

In message <A4HVa.4115$Ye. 102@fed1read02> , Wayne Davis <waydavis58@hot ma
il.com.NOSPAM> writes

What is "top post"?

And when I say it is encrypted, I mean the WHOLE PAGE is an encrypted
Javascript. You can read it, but I don't think it would help you. So I
think giving me examples in plain Javascript would suffice.

Below is a sample webpage that says: "Hello There" in the middle of the
screen. This looks like it would thwart most attempts to "break" it. No?
Take a crack at it. I'll post the ORIGINAL page as (I) wrote it later.
--------------------------------------------------------
<SCRIPT LANGUAGE="Javas cript"><!--

//0019910288283-004994838-00292992-
function process(pe)
{
document.write (unescape(pe))
Change this line to:

alert(unescape( pe))

and you see it.
return ""
}
function start()
{
var pe=new Array()
pe[0]=new
Array("%3C%53% 43%52%49%50%54% 20%4C%41%4E%47% 55%41%47%45%3D% 22%4A%61%76%61% 73
%63%72%69%70%7 4%22%3E%0A%64%6 F%63%75%6D%65%6 E%74%2E%6F%6E%6 3%6F%6E%74%65%7 8%
74%6D%65%6E%75 %20%3D%20%64%69 %73%61%62%6C%65 %52%69%67%68%74 %43%6C%69%63%6B %3
B%0A%66%75%6E% 63%74%69%6F%6E% 20%64%69%73%61% 62%6C%65%52%69% 67%68%74%43%6C% 69

.... Rest of code snipped ....

--
Toodles, LuSiVe

Jul 20 '05 #6

Lasse Reichstein Nielsen

"Wayne Davis" <wa********@hot mail.com.NOSPAM > writes:

What is "top post"?
It is to put your reply at the top and include the entire post you
reply to below. The preferred way of responding is the "interleave d"
method where you include selected parts of the previous message, enough
to give a context to your reply, and then reply to each part.
And when I say it is encrypted, I mean the WHOLE PAGE is an encrypted
Javascript. You can read it, but I don't think it would help you. So I
think giving me examples in plain Javascript would suffice.

Below is a sample webpage that says: "Hello There" in the middle of the
screen. This looks like it would thwart most attempts to "break" it. No?
Take a crack at it. I'll post the ORIGINAL page as (I) wrote it later.

Starting 12.22 local time.
End 12.27 local time.
Result (as written after the encoded version):
---
<SCRIPT LANGUAGE="Javas cript">
document.oncont extmenu = disableRightCli ck;
function disableRightCli ck()
{
return false;
}
var message=""
function click(e)
{
if (navigator.appN ame == "Netscape" &&
(e.which == 3 || e.which == 2))
return false;if (document.all)
{
if (event.button == 3)
{
return false;
}
if (event.button == 2)
{
return false;
}
}if (document.layer s)
{
if (e.which == 3)
{
return false;
}
}
}
if (document.layer s)
{
document.captur eEvents(Event.M OUSEDOWN);
document.captur eEvents(Event.M OUSEUP);
}
document.onmous edown=click
document.onmous eup=click
</script><style Media="Print" type="text/css">
body {display:none}
</style>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="imagetoo lbar" CONTENT="no">
<meta name="MSSmartTa gsPreventParsin g" content="TRUE">
<META HTTP-EQUIV="Expires" CONTENT="-1">
<title>Untitl ed Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body ondragstart="re turn false" onselectstart=" return false" onContextMenu=" return false" >
<div align="center"> <font color="#0000FF" ><font size="+4">Hello There!
</font></font>
</div>
</body>
</html>
---

I had to use some time collecting the wrapped lines (i.e., your posted
version won't work if copied verbatim).

The page doesn't validate. You are not allowed to have script elements
before the <head> tag.

The function that attempts to clobber the status line, as well as the
attempt to stop the context menu, will fail in my browser anyway.

Encrypting web pages cannot work, it's simply theoretically impossible
to make a page that the browser can decrypt, but its user cannot.
/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

Jul 20 '05 #7

Wayne Davis

Well, You have all proven the point. And of course you are 100% correct.
Hmm.... So now, to do what I want would require some code on the server?
Is this a simple thing to do yet/still?

Jul 20 '05 #8

Dr John Stockton

JRS: In article <A4HVa.4115$Ye. 102@fed1read02> , seen in
news:comp.lang. javascript, Wayne Davis <wa********@hot mail.com.NOSPAM >
posted at Tue, 29 Jul 2003 20:38:10 :-

What is "top post"?
Putting responses before quoted material, generally untrimmed. Read the
FAQ. Eschew the practice, as experienced posters to.

And when I say it is encrypted, I mean the WHOLE PAGE is an encrypted
Javascript. You can read it, but I don't think it would help you. So I
think giving me examples in plain Javascript would suffice.

Below is a sample webpage that says: "Hello There" in the middle of the
screen. This looks like it would thwart most attempts to "break" it. No?
Take a crack at it.

It is unfair to post a page that is not valid script; you have allowed
the newsreader to break lines. After correcting that, one can see the
code by doing alert(unescape( pe)) which, on looking at your
article, is a fairly obvious approach.

Executing S = <that string> ; F.Code.value = unescape(S)
in my js-quick.htm loads the textarea with the script.

W3's TIDY does not much like the decoded code, though.

--
© John Stockton, Surrey, UK. ?@merlyn.demon. co.uk Turnpike v4.00 IE 4 ©
<URL:http://jibbering.com/faq/> Jim Ley's FAQ for news:comp.lang. javascript
<URL:http://www.merlyn.demo n.co.uk/js-index.htm> JS maths, dates, sources.
<URL:http://www.merlyn.demo n.co.uk/> TP/BP/Delphi/JS/&c., FAQ topics, links.

Jul 20 '05 #9

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