php - http header redirect from multiple sources -


this working setup

main-page --> forum-page

you can access forum-page when coming main-page. if access forum-page anywhere else main-page.

here's code on forum-page , works intended

if($_server['http_referer']!=='https://homepage.com/folder/mainpage.php') {     header('location: https://homepage.com/folder/mainpage.php');     exit; }

but

if come forum-subpage main-page. forum-page looks this

https://homepage.com/folder/forumpage.php?page=view&entry=16

this want achieve

main-page --> forum-page <-- forum-subpages

so need rule on forum-page accept return forum-subpage. since can't define every subpage want add wildcard @ end this

https://homepage.com/folder/forumpage.php?page=*

i don't know how add correct syntax first rule above make work. ideas highly appreciated.

i guess this

if($_server['http_referer']!=='https://homepage.com/folder/mainpage.php'      && substr($_server['http_referer'], 0, 47) !== 'https://homepage.com/folder/forumpage.php?page=') {     header('location: https://homepage.com/folder/mainpage.php');     exit; }

this setup worries me though. wouldn't rely on $_server['http_referer']; browsers not guaranteed set or @ all. concerns me question tagged security provides no real security.


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