In \applications\convert\Application.php there is no check to redirect old vBulletin links. It only checks for Expression, Vanilla, Xenforo, and SMF:

	public function convertLegacyParameters()
	{
		$_qs = '';
		if ( isset( $_SERVER['QUERY_STRING'] ) )
		{
			$_qs = $_SERVER['QUERY_STRING'];
		}
		elseif ( isset( $_SERVER['PATH_INFO'] ) )
		{
			$_qs = $_SERVER['PATH_INFO'];
		}
		elseif ( isset( $_SERVER['REQUEST_URI'] ) )
		{
			$_qs = $_SERVER['REQUEST_URI'];
		}

		/* Expression Engine */
		preg_match ( '#(viewforum|viewthread|viewreply|member)\/([0-9]+)#i', $_qs, $matches );
		if( isset( $matches[1] ) AND $matches[1] )
		{
			static::checkRedirects();
		}

		/* Vanilla */
		preg_match ( '#(discussion|profile)\/([0-9]+)\/#i', $_qs, $matches );

		if( isset( $matches[1] ) AND $matches[1] )
		{
			static::checkRedirects();
		}

		/* Xenforo */
		preg_match ( '#(forums|threads|members)\/(.*)\.([0-9]+)#i', $_qs, $matches );

		if( isset( $matches[1] ) AND $matches[1] )
		{
			static::checkRedirects();
		}

		/* SMF */
		if( \IPS\Request::i()->board OR \IPS\Request::i()->topic OR \IPS\Request::i()->action )
		{
			static::checkRedirects();
		}
	}

 

These vBulletin links are not checked at all:

• forumdisplay.php
• viewtopic.php
• showthread.php
• member.php
• album.php
• picture.php

Edited March 23, 20232 yr by teraßyte

Thank you for bringing this issue to our attention! I can confirm this should be further reviewed and I have logged an internal bug report for our development team to investigate and address as necessary, in a future maintenance release.

 

That's because it's legacy code (note it's in a method for dealing with legacy parameters).

Redirects are handled with a hook on the front dispatcher. If the request results in a 404, it'll check the Converter applications.

Okay, I see what you mean now @Stuart Silvester.

 

But the check for viewtopic.php is the one still missing from the redirect code. I see only showthread.php and showpost.php.

vBulletin didn't use viewtopic.php, it used showthread.php

Maybe they had some kind of 3rd party modification then. 🤨

 

Oh well, all good then. I'll deal with it myself.

1 hour ago, teraßyte said:

Maybe they had some kind of 3rd party modification then. 🤨

 

Oh well, all good then. I'll deal with it myself.

viewtopic.php is most likely phpBB, which they may have used prior to vBulletin.