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echo: fidonews
to: WILFRED VAN VELZEN
from: BILL MCGARRITY
date: 2016-01-28 10:37:00
subject: Re: FidoNews 33:04 [01/05

Hiya Wilfred...

-=> Wilfred van Velzen wrote to Stephen Hurd <=-


 WvV> On 2016-01-27 21:08:55, you wrote to me:

 >> So thank god for good dupe checking... Hmm, if only sbbsecho would do
 >> that on  forwarded messages...

 SH> Is that a bug report or a feature request?

 WvV> I would call it a design flaw. ;)

 SH> I haven't done much sbbsecho work except in response to bug reports,
 SH> but now is a good time to make sbbsecho feature requests.

 SH> In what way is the current sbbsecho misheaving?

 WvV> Rob explained it to me as follows:

 WvV> "The duplicate message checking occurs in the Synchronet Message Base
 WvV> (SMB) library, which is not specific to FidoNet or any other networking
 WvV> technology. So whether a message is imported via QWK, NNTP, SMTP,
 WvV> PostLink, FTN, or whatever-future-networking-technology, it is
 WvV> subjected to the same database of hashes to detect duplicates.

 WvV> When an FTN message packet is processed by SBBSecho but the message is
 WvV> not imported into a local message base (e.g. pass-through area or
 WvV> passing between up/downlinks), the SMB library is thus not involved
 WvV> (the message would go straight from one FTN packet to another FTN
 WvV> packet), never touching a Synchronet message base."

 WvV> So as I understand it the dupe checking only happens when messages are
 WvV> imported into the message base. But by then the message is already
 WvV> tossed/send to all connected links...

That issue has long been resolved.  Rob added a noForwardCircular where it
looks at the seen-bys and if it's in there, it doesn't get passed on.  You can
ask both Janis and Bj%rn if indeed this works.


--

Bill

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