Subj : newslink.js - import PTRs
To : Ash-Fox
From : Digital Man
Date : Sat Nov 17 2007 09:10 pm
Re: newslink.js - import PTRs
By: Ash-Fox to DOVE-Net.Synchronet_JavaScript on Fri Nov 16 2007 04:04 pm
> Greetings all,
>
> Recently I've linked my BBS to a rather unreliable news server (there is
> unique groups on there that other news servers don't have). Unfortunately
> because of it's unreliability I've had a bunch of issues trying to mirror
> all the content, as I keep running into various problems such as:
>
> - Random disconnects
> - Infinite loop (100000000 branches) detected issue
>
> To get around the Infinite loop problem, I tried setting at the beginning of
> newslink.js the following:
>
> branch_limit = "0";
>
> Unfortunately, that seems to do nothing at all.
That's because branch_limit is a property of the 'js' object, so you would want
to use:
js.branch_limit = 0;
instead.
> Whenever a random issue happens, be it disconnection or infinite loop, the
> message import PTRs are not updated, so, the BBS starts from the beginning
> and ignores a bunch of messages after downloading them as it already has
> them.
A disconnection will not cause the PTRs to not be updated. Only a JS exception
(like the infinite loop detection) would cause that.
> I looked at the sourcecode of where the pointers are retrieved, from my
> understanding it's from the .snl file in /data/subs/. Unfortunately when I
> open it up, it's in some binary format I don't quite understand. Looking at
> the javascript code, used newslink.js, I'm just not getting how it's set.
> So I can't manually fix the number.
>
> I've resorted to temporarily hardcoding the PTR number in the newslink.js,
> but I think a better workaround would be updating the PTR number in
> the .snl file everytime a article is downloaded, rather than when the
> entire transaction is complete.
>
> While I do more or less understand what's going on in newslink.js, I'm
> really confused about what I would need to modify in the file to make this
> happen and would appreciate help on this. I also consider the fact that
> PTRs aren't updated with every article download is a bug.
I'd suggest limiting the number of messages downloaded per execution of
newslink.js and that'll avoid the problem altogether with no modification of
newslink.js necessary.
digital man (xbox-live: digitlman)
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