So is there any way to block %? ---------------------------------------- > Date: Wed, 9 Feb 2011 21:27:25 +0000 > From: squid3@xxxxxxxxxxxxx > To: squid-users@xxxxxxxxxxxxxxx > Subject: Re: url blocking > > On Wed, 9 Feb 2011 13:37:26 +0000, "Zartash ." > wrote: > > Dear All,We are blocking urls using url_regex feature (urls are stored > in > > a file), but we are unable to block urls having special characters (like > > complete youtube video links or urls having % sign or ? etc). Can any > one > > let me know how can we block specific urls (rather then blocking whole > > domain)? > > To regex match characters which are reserved in regex you need to escape > them with \ characters: > > url_regex http://example.com/\?hello=world > > matches: http://example.com/?hello=world > > > % are slightly different, in URLs they are used to encode raw binary > characters. These are decoded back into binary form for the match. So your > pattern wanting to detect a specific one of these should match the binary > form. eg. %20 encodes hex binary 0x20 or character value 32 (spacebar). > > Amos >
