[Esa-l]Squid ACLs for webmail

[John D. Hardin]

On Tue, 24 Jul 2001, clark shishido wrote:

> We'll need to update/maintain a list of attachment fetching URLs.

Granted. Sigh.

> I just checked YahooMail and their attachment fetch URL is in the
> form:
> 
> http://[country].[servername].mail.yahoo.com/ym/ShowLetter/[filename]?box=...MsgId...

Okay, so add:

	\.exe\?

et. al. to the executables file, and

	.*\.mail\.yahoo\.com

to the webmails file.

Could someone with a yahoo mail account and squid proxy try this?

> Also, do we need to worry about html entity substitution in the
> URL or does squid take do a match on both?

Squid normalizes the URL before checking the ACL. This bit me on
making an ACL for escaped SCRIPT tags embedded in a URL a few weeks
back...

--
 John Hardin KA7OHZ   ICQ#15735746   http://www.wolfenet.com/~jhardin/
 jhardin at impsec.org        pgpk -a finger://gonzo.wolfenet.com/jhardin
  768: 0x41EA94F5 - A3 0C 5B C2 EF 0D 2C E5  E9 BF C8 33 A7 A9 CE 76 
 1024: 0xB8732E79 - 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
-----------------------------------------------------------------------
  In 1998 more than three times as many people in the US were killed
  by incompetent physicians than were killed by handguns, yet the
  President of the A.M.A. is adopting "gun safety" as his platform.
-----------------------------------------------------------------------
   1197 days until the Presidential Election