On 6/05/2016 5:51 p.m., Victor Hugo wrote: > Here's a strange one for you though, if I change: > acl whitelist-regex url_regex -i reddit.com/r/news > > to: > acl whitelist-regex url_regex -i reddit\.com\/r\/news www\.reddit\.com\:443 > > it works every 2nd time but the match is too greedy and allows > www.reddit.com/r/anything every 2nd time. > That first regex pattern requires a path "/r/news" to exist. CONNECT messages do not have paths. That second pattern you are now adding matches (and thus allows) the CONNECT message authority-URI built from the traffic SNI details. They are two different regex patterns so if *either one* matches the ACL test will be a match. Try adding this line *after* the default "deny CONNECT !SSL_ports" line: acl reddit dstdomain .reddit.com http_access allow CONNECT SSL_ports reddit That should allow the CONNECT's stuff to happen and your ssl_bump and http_access rules then handle the HTTPS. Amos > Victor > > it > > On Thu, Feb 11, 2016 at 10:05 AM, Victor Hugo <fourtrials@xxxxxxxxx> wrote: > >> Hi, >> >> I was wondering if it is possible to filter HTTPS URLs using squid (for >> example to blacklist reddit.com but allow https://www.reddit.com/r/news/)? >> >> I thought this may be possible using ssl_bump and url_regex. I have been >> trying this using squid 3.5.13 but with no success. >> >> Here is the squid configuration that I have tried but doesn't seem to work >> (it works for http sites though): >> >> acl localnet src 10.0.0.0/8 # RFC1918 possible internal network >> acl localnet src 172.16.0.0/12 # RFC1918 possible internal network >> acl localnet src 192.168.0.0/16 # RFC1918 possible internal network >> acl localnet src fc00::/7 # RFC 4193 local private network range >> acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) >> machines >> >> acl SSL_ports port 443 >> acl Safe_ports port 80 # http >> acl Safe_ports port 21 # ftp >> acl Safe_ports port 443 # https >> acl Safe_ports port 70 # gopher >> acl Safe_ports port 210 # wais >> acl Safe_ports port 1025-65535 # unregistered ports >> acl Safe_ports port 280 # http-mgmt >> acl Safe_ports port 488 # gss-http >> acl Safe_ports port 591 # filemaker >> acl Safe_ports port 777 # multiling http >> acl CONNECT method CONNECT >> >> http_access deny !Safe_ports >> http_access deny CONNECT !SSL_ports >> http_access allow localhost manager >> http_access deny manager >> >> acl whitelist-regex url_regex -i reddit.com/r/news >> http_port 3129 ssl-bump >> cert=/opt/squid-3.5.13/etc/squid3/ssl_cert/myCA.pem >> generate-host-certificates=on dynamic_cert_mem_cache_size=4MB >> acl bump_sites ssl::server_name .reddit.com >> ssl_bump bump bump_sites >> ssl_bump splice !bump_sites >> http_access allow whitelist-regex >> http_access allow localhost >> http_access deny all >> coredump_dir /opt/squid-3.5.13/var/spool/squid3 >> refresh_pattern ^ftp: 1440 20% 10080 >> refresh_pattern ^gopher: 1440 0% 1440 >> refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 >> refresh_pattern . 0 20% 4320 >> pinger_enable off >> Relevant access.log output (IP addresses redacted to x.x.x.x): >> 1455145755.589 0 x.x.x.x TCP_DENIED/200 0 CONNECT www.reddit.com:443 >> - HIER_NONE/- - >> 1455145755.669 0 x.x.x.x TAG_NONE/403 4011 GET >> https://www.reddit.com/r/news - HIER_NONE/- text/html >> 1455145755.782 0 x.x.x.x TCP_DENIED/200 0 CONNECT www.reddit.com:443 >> - HIER_NONE/- - >> >> I don't want to whitelist the dstdomain .reddit.com >> (i.e whitelist-ssldomain dstdomain .reddit.com) as that would allow >> access to all of the other subreddits. >> >> Appreciate any help or suggestions you have. Thanks. >> >> Victor >> > _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
