[RESOLVED] deny acess to page unless

@LowallynJun 05.2007

putfile used to have something like this, but its gone now so i cant look at their code ?

so could someone help me out with a code that denies acess to a page or send you to a different page unless that page is acessed via a certain page?

like…. you have to click the link on page a to get to page b, and if you type in the url for page b into the webbrowser it send you back to page a.

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JavaScript

@cs3mwJun 05.2007 — #are you using a server side script ie.e. php its easily done in that.

Regards

@Gerald_BocciJun 05.2007 — #Using JavaScript isn't the best way, this can always be spoofed (or even just turned off). A better idea would be to use server-side code to check that the referring page came from the proper URL.

However, since this is the JavaScript forum, you can try this:

[CODE]
 <script language="javascript">
 if(document.referrer != "http://myUrl/myPage.html")
 window.location.href=top.document.referrer;
 </script>
 [/CODE]

This will redirect the browser back to the referring page if it does not match your specified URL.

To test, create these three pages:

[B]a.html[/B] ("proper" page with a link to c.html)

[CODE]
 <HTML>
 <HEAD></HEAD>
 <BODY>
 <a href="c.html">c.html</a>
 </BODY>
 </HTML>
 [/CODE]

[B]b.html[/B] ("improper" page with a link to c.html)

[CODE]
 <HTML>
 <HEAD></HEAD>
 <BODY>
 <a href="c.html">c.html</a>
 </BODY>
 </HTML>
 [/CODE]

[B]c.html[/B]

[CODE]
 <HTML>
 <HEAD>
 <script language="javascript">
 if(document.referrer != "http://localhost/a.html")
 window.location.href=top.document.referrer;
 </script>
 </HEAD>
 <BODY onload="checkReferrer();">
 Yay!
 </BODY>
 </HTML>
 [/CODE]

(This assumes that the three pages are in the root folder of your web server, and that you're running this locally. Change the "localhost" to a proper URL to test the code on your site.)

@LowallynauthorJun 05.2007 — #hmm it sending me back to the page i was on no matter what.... might be due to restrictions in zendurl though...

EDIT: nvm i got it to work.... its just that i have a subdomain so i was trying to visit c from http://www.zendurl.com/1/1erik1/a.html instead of http://1erik1.zendurl.com/a.html even though theyre the same page.

Thanks ?

@LowallynauthorJun 15.2007 — #okay thanks one thing can you edit the above script to fit my needs?

site: http://1erik1.zendurl.com

I changed my mind on how I was going to use the script and decided to use it to hide the source code of a certain page (the YOUTUBE url link, third one down) by putting it in an iFrame. Only problem, is that you can getaround that easily by opening that link in a new tab in firefox.

any help?

@LowallynauthorJun 17.2007 — #someone please help

@felgallJun 17.2007 — #The referrer is a user enterable field and so can be set to whatever you want. You will actually need to use a session server side if you want to control which pages a given page can be accessed from. Any other approach will not work.

[RESOLVED] deny acess to page unless

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