DNSBL -Bset:URL mode

Kostik koc@fax.ru
Thu Jan 27 14:45:25 UTC 2011


> Vernon Schryver wrote:
>>> Looks like a sign of the beginning of a query string missing:
>>> news.cxxxxx.comid=xxxxxx -> news.cxxxxx.com?id=xxxxxx
>>> (but I do not know whether it was in the raw message)
>> I don't see anything that should be done for news.cxxxxx.comid=xxxxxx
>> There is no way to know that "comid" should have been "com?id"
>> instead of new TLD comid
> There are many such URLs in my e-mail traffic. It seems that this is a
> problem with URL parsing. I will try to catch a raw message for better bug
> reporting.

1. Strange situation... I have not truncated raw message logged by DCC with
error: "DNSBL invalid domain name 'www.example.crecnum=sx-011333'".

But raw message contains a URL:
Content-Type: text/html; charset="ISO-8859-1"
Content-Transfer-Encoding: 8bit

<a href="http://www.example.com/AuctionDetail.aspx?recnum=SX-011333">
And if I try to feed this raw logged message via dcc again - no error,
domain parsed correctly. A lot of such "broken" domains in my e-mail traffic.

2. DNSBL invalid domain name "www.example.com\\userpics\\2011"
Raw msg:
<img src="http://www.example.com\userpics\2011/10-27-10a.jpg" width="300" />
But some MUA open it like: http://www.example.com/userpics/2011/10-27-10a.jpg
(Opera, Outlook)

3. DNSBL invalid domain name "www.example.com\240\240"
Raw msg:
<span class="Apple-style-span" style="font-size: x-small;
">http://example.com  </span>
But two hex 'A0' space between "example.com" and "</span>". It googled like
"'A0' is a non-breaking space".

>> Do any popular mail user agents treat the strings
>> "http://xxx.example.com;" "http://xxx.example.com," or
>> "http://xxx.example.com)" as "<http://xxx.example.com>;" etc?
> I did several tests on: thunderbird, kmail and microsoft outlook
> Examples from my real e-mail traffic:
> ---

> http://xxx.example.com)
> http://xxx.example.com),
> http://xxx.example.com:
> http://xxx.example.com]
> http://xxx.example.com]:


> - thunderbird and outlook consider it as a valid http://xxx.example.com/
> but not kmail

> http://xxx.example.com,
> - all of my mail agents consider it as a valid http://xxx.example.com/

> http://xxx.example.com\240
> http://xxx.example.com\cell
> - outlook convert it into valid:
> http://xxx.example.com/240 and http://xxx.example.com/cell but not
> thunderbird and kmail

> http://xxx.example.com%c2%a0
> http://xxx.example.com%2f
> http://xxx.example.com%2f)
> - no one
> ---


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