Strange INN-current crash.

Petr Novopashenniy pety at rusnet.ru
Fri Apr 3 10:57:17 UTC 2009


Good day, Julien!

On Thu, 2 Apr 2009, Julien ?LIE wrote:

JL> Hi Petr,
JL> 
JL> > This is the session:
JL> > takethis <a2 at 33>
JL> > Path: pety
JL> > Date: Wed, 01 Apr 2009 02:12:01 -0500
JL> > Subject: 010518
JL> > From: <pety at pety>
JL> > Distribution:
JL> > Message-ID: <a2 at 33>
JL> > Newsgroups: relcom.test
JL> > 
JL> > 
JL> > Test
JL> > .
JL> > 439 <a2 at 33>
JL> > check <a2 at 33>
JL> > 238 <a2 at 33>
JL> 
JL> OK, I understand this one.
JL> 
JL> I obtain with a new patch I have just written:
JL> 
JL> Apr  2 12:21:30.921 - ? (null) 439 No colon-space in "Distribution:" header
JL> Apr  2 12:43:47.455 - localhost <a2 at 33> 439 No colon-space in
JL> "Distribution:" header
JL> 
JL> depending on the Message-ID: header is received before or after the
JL> Distribution: header.
JL> 
JL> The fact is that innd does a preliminary check on the syntax of headers
JL> fields.
JL> 439 is known to be returned even before the article has been totally
JL> received:  just
JL> after having received "Distribution:", innd knows it will reject it.
JL> 
JL> Then, on later CHECK, it returns 238 (and not 438) because it hopes a
JL> well-formed
JL> article will be sent for this article (it was maybe an error the first
JL> time).

I believe that this is an error. Very little chance of receiving 
well-formed article.. Only Cyclone drop empty header, but I not know 
what Cyclone does with spaces in header..
And this wasting bandwith, especially for binaries groups.

And about logs. Now I believe in all cases...

200 npc5.stu.neva.ru InterNetNews server INN 2.5.0 (20090330 snapshot) 
ready
takethis <a1 at 53>
Path: pety
Date: Wed, 01 Apr 2009 02:12:01 -0500
Subject: 123
From: <pety at pety>
Cc:
Message-ID: <a1 at 53>
Newsgroups: relcom.test


Test
.
439 <a1 at 53>
check <a1 at 53>
238 <a1 at 53>


Invalid Cc: header without spaces - ("Cc:").

No log in "news" about this (this is error, and i not know your "new  
patch"), and this "bad" article not remember (this is also wrong?). 

And if "Cc:" after Message-ID:

takethis <a1 at 54>
Path: pety
Date: Wed, 01 Apr 2009 02:12:01 -0500
Subject: 123
From: <pety at pety>
Message-ID: <a1 at 54>
Cc:
Newsgroups: relcom.test


Test
.
439 <a1 at 54>
check <a1 at 54>
238 <a1 at 54>

Log:
Apr  3 14:37:35.832 - npc5.stu.neva.ru <a1 at 54> 439 No colon-space in "Cc:" 
header

log is fine, but also without history update.

If I get a lot of such articles from many peers, may be a problem with 
logging (perfomance, for example), because I have one log message for each 
peer for SAME article.

I think better to remember those bad articles.

JL> > takethis <a2 at 33>
JL> > Path: pety
JL> > Date: Wed, 01 Apr 2009 02:12:01 -0500
JL> > Subject: 010518
JL> > From: <pety at pety>
JL> > Message-ID: <a2 at 33>
JL> > Distribution:
JL> > Newsgroups: relcom.test
JL> > 
JL> > 
JL> > Test
JL> > .
JL> > 439 <a2 at 33>
JL> > check <a2 at 33>
JL> > 438 <a2 at 33>
JL> 
JL> Should it be accepted instead?
JL> With my new patch, I have 239 for TAKETHIS and:
JL> 
JL> Apr  2 12:47:06.327 + localhost <a2 at 33> 240 inpaths! source-archive!
JL> 
JL> 
JL> Is it what you would like?  Accepting such articles with "Distribution:",
JL> "Distribution: "
JL> or "Distribution:   "?
JL> 

I think accept "Distribution: " and "Distribution:   " (I remember your 
USEPRO), but not accept "Distribution:", "Distribution", and remember this 
msgid.

JL> Julien ?LIE
JL> 

--pety




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