Problem with nginx/0.8.54 and alias

[Jim Ohlstein]

On 2/18/11 5:06 PM, Maxim Dounin wrote:
> Hello!
>
> On Fri, Feb 18, 2011 at 12:46:44PM -0500, Jim Ohlstein wrote:
>
>> On 2/18/11 11:57 AM, Dayo wrote:
>>> Здравствуйте!
>>>
>>> Maxim Dounin Wrote:
>>> -------------------------------------------------------
>>>>>> Just a side note: forum is awful, it eats
>>>> data.
>>>>>
>>>>> To be fair to the forum, I was the one that
>>>> truncated the quote to only
>>>>> show the relevant part to my post.
>>>>> The long and complex quotes become impossible
>>>> for me to follow.
>>>>
>>>> I'm complaining about "" in regexp being eaten by
>>>> forum engine,
>>>> nothing else.  Forum's inability to preserve data
>>>> intact is really
>>>> distressing.
>>
>> I am unaware of this particular issue until now, or, if I was it has
>> slipped my mind. I have responded to your complaints in the past and
>> fixed as many of them as possible. Instead of making these snide
>> comments on the mailing list, it would be more helpful if you simply
>> aired your issues with me privately. I then *might* be more inclined
>> to work on them. It would be better to handle forum issues on the
>> forum (or privately) and not to pollute the mailing list with them.
>
> Sorry for being rude, but I've noticed the issue and commented
> according to it's nature.  I indeed consider anything which causes
> data corruption to be awful (and this isn't the first data
> corruption issue with forum, unfortunately).  I also consider
> nginx proxy cache to be awful for similar reasons - hope this will
> help you to feel yourself better. ;)

Maxim, this is not about my feelings. As Eleanor Roosevelt said, "No one 
can make you feel inferior without your consent.". If someone makes a 
comment to you that your help is awful, how likely are you to continue 
helping him?

>
> And as far as this indeed affects mailing list and forum,
> including people in this particular thread (note several messages
> with incorrect configs due to<NAME>  being stripped) - I don't
> consider private reporting to be better way to go.

I don't disagree but reporting it is different than making comments such 
as "forum is awful" without giving specifics. That is hardly helpful.

>
> Some more issues in additional to one with<NAME>, in case you are
> willing to work on them:
>
> 1. BB-codes seems to be processed in mailing list messages shown
> in forum, thus providing another data damage vector.  Example may
> be seen in the same thread, in Igor's message:

We have gone over this one in the past. The way the forum engine works 
is that it "sees" anything enclosed in square brackets as bbcode. My 
choice was to send the messages "as is" with the bbcode or to strip the 
bbcode. Initially I was stripping the bbcode in emails from the forum 
until it was brought to my attention that this also stripped necessary 
information, mostly from regexps. When informed, and at *your* request, 
I changed it so bbcode is sent in the emails. I can eliminate bbcode 
entirely, but that is the only "solution", albeit not a great one.

>
> http://forum.nginx.org/read.php?2,176110,176123#msg-176123
>
> 2. Word wrapping in UTF-8 seems to be done based on bytes, not on
> chars.  This causes really narrow (and hard to read) messages from
> forum in russian mailing list.

How would I have known this? I don't read the Russian mailing list. 
Again. making comments like "forum is awful" without this specific 
information is not helpful. I can look into this.

>
> 3. Subject isn't correctly encoded - UTF-8 chars may be splitted
> into different MIME words (which is not allowed per standard).
> Igor currently workaround this with local script to re-encode them
> correctly, but this in turn may damage other Subject's.  Original
> value is preserved in X-Subject header, here is some recent
> example:
>
> X-Subject: =?UTF-8?Q?403=20Forbidden=20=D0=BF=D1=80=D0=B8=20=D0=B2=D1=85=D0=BE?=
>          =?UTF-8?Q?=D0=B4=D0=B5=20=D0=BD=D0=B0=20=D0=B2=D1=82=D0=BE=D1=80=D0?=
>          =?UTF-8?Q?=BE=D0=B9=20=D0=B4=D0=BE=D0=BC=D0=B5=D0=BD(?=
>
> Note "=D0" and "=BE" (single UTF-8 char) split across MIME words.
> It would be good to resolve the core issue with forum and remove
> the workaround in question.

I may be able to fix this. I will look at the code.

Again, anyone who knows PHP (I hardly do) is welcome to offer assistance 
to me on any/all of the above. Bear in mind, this is not my app and I 
can at best place band-aids on it.

>
> Maxim Dounin
>

-- 
Jim Ohlstein