diff options
Diffstat (limited to 'packages/squid_ng.inc')
| -rw-r--r-- | packages/squid_ng.inc | 552 |
1 files changed, 552 insertions, 0 deletions
diff --git a/packages/squid_ng.inc b/packages/squid_ng.inc new file mode 100644 index 00000000..33845789 --- /dev/null +++ b/packages/squid_ng.inc @@ -0,0 +1,552 @@ +<?php +/* $Id$ */ + +/* + squid_ng.inc + part of pfSense (www.pfSense.com) + + Copyright (C) 2005 Michael Capp <michael.capp@gmail.com> + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + +*/ + +function global_write_squid_config() { + conf_mount_rw(); + config_lock(); + + global $config; + + /* define squid configuration file in variable for replace function */ + $squidconfig = "/usr/local/etc/squid/squid.conf"; + + /* squid_ng.xml values */ + $active_interface = $config['installedpackages']['squidng']['config'][0]['active_interface']; + $transparent_proxy = $config['installedpackages']['squidng']['config'][0]['transparent_proxy']; + $log_enabled = $config['installedpackages']['squidng']['config'][0]['log_enabled']; + $urlfilter_enable = $config['installedpackages']['squidng']['config'][0]['urlfilter_enable']; + $log_query_terms = $config['installedpackages']['squidng']['config'][0]['log_query_terms']; + $log_user_agents = $config['installedpackages']['squidng']['config'][0]['log_user_agents']; + $proxy_port = $config['installedpackages']['squidng']['config'][0]['proxy_port']; + $visible_hostname = $config['installedpackages']['squidng']['config'][0]['visible_hostname']; + $cache_admin_email = $config['installedpackages']['squidng']['config'][0]['cache_admin_email']; + $error_language = $config['installedpackages']['squidng']['config'][0]['error_language']; + + /* squid_upstream.xml values */ + $proxy_forwarding = $config['installedpackages']['squidupstream']['config'][0]['proxy_forwarding']; + $client_ip_forwarding = $config['installedpackages']['squidupstream']['config'][0]['client_ip_forwarding']; + $user_forwarding = $config['installedpackages']['squidupstream']['config'][0]['user_forwarding']; + $upstream_proxy = $config['installedpackages']['squidupstream']['config'][0]['upstream_proxy']; + $upstream_proxy_port = $config['installedpackages']['squidupstream']['config'][0]['upstream_proxy_port']; + $upstream_username = $config['installedpackages']['squidupstream']['config'][0]['upstream_username']; + $upstream_password = $config['installedpackages']['squidupstream']['config'][0]['upstream_psasword']; + + /* squidcache.xml values */ + $memory_cache_size = $config['installedpackages']['squidcache']['config'][0]['memory_cache_size']; + $harddisk_cache_size = $config['installedpackages']['squidcache']['config'][0]['harddisk_cache_size']; + $minimum_object_size = $config['installedpackages']['squidcache']['config'][0]['minimum_object_size']; + $maximum_object_size = $config['installedpackages']['squidcache']['config'][0]['maximum_object_size']; + $level_subdirs = $config['installedpackages']['squidcache']['config'][0]['level_subdirs']; + $memory_replacement = $config['installedpackages']['squidcache']['config'][0]['memory_replacement']; + $cache_replacement = $config['installedpackages']['squidcache']['config'][0]['cache_replacement']; + $domain = $config['installedpackages']['squidcache']['config'][0]['domain']; + $enable_offline = $config['installedpackages']['squidcache']['config'][0]['enable_offline']; + + /* squidnac.xml values */ + $allowed_subnets = $config['installedpackages']['squidnac']['config'][0]['allowed_subnets']; + $unrestricted_ip_address = $config['installedpackages']['squidnac']['config'][0]['unrestricted_ip_address']; + $unrestricted_mac_addresses = $config['installedpackages']['squidnac']['config'][0]['unrestricted_mac_addresses']; + $banned_ip_addresses = $config['installedpackages']['squidnac']['config'][0]['banned_ip_addresses']; + $banned_mac_addresses = $config['installedpackages']['squidnac']['config'][0]['banned_mac_addresses']; + + /* squidtraffic.xml values */ + $max_download_size = $config['installedpackages']['squidtraffic']['config'][0]['max_download_size']; + $max_upload_size = $config['installedpackages']['squidtraffic']['config'][0]['max_upload_size']; + $dl_overall = $config['installedpackages']['squidtraffic']['config'][0]['dl_overall']; + $dl_per_host = $config['installedpackages']['squidtraffic']['config'][0]['dl_per_host']; + $throttle_binary_files = $config['installedpackages']['squidtraffic']['config'][0]['throttle_binary_files']; + $throttle_cd_images = $config['installedpackages']['squidtraffic']['config'][0]['throttle_cd_images']; + $throttle_multimedia = $config['installedpackages']['squidtraffic']['config'][0]['throttle_multimedia']; + + /* squidauth.xml values (placeholder for now) */ + $no_auth = $config['installedpackages']['squidtraffic']['config'][0]['no_auth']; + $local_auth = $config['installedpackages']['squidtraffic']['config'][0]['local_auth']; + $ldap_auth = $config['installedpackages']['squidtraffic']['config'][0]['ldap_auth']; + $windows_auth = $config['installedpackages']['squidtraffic']['config'][0]['windows_auth']; + $radius_auth = $config['installedpackages']['squidtraffic']['config'][0]['radius_auth']; + $auth_processes = $config['installedpackages']['squidtraffic']['config'][0]['auth_processes']; + $auth_cache_ttl = $config['installedpackages']['squidtraffic']['config'][0]['auth_cache_ttl']; + $limit_ip_addr = $config['installedpackages']['squidtraffic']['config'][0]['limit_ip_addr']; + $user_ip_cache_ttl = $config['installedpackages']['squidtraffic']['config'][0]['user_ip_cache_ttl']; + $req_unrestricted_auth = $config['installedpackages']['squidtraffic']['config'][0]['req_unrestricted_auth']; + $auth_realm_prompt = $config['installedpackages']['squidtraffic']['config'][0]['auth_realm_prompt']; + $no_domain_auth = $config['installedpackages']['squidtraffic']['config'][0]['no_domain_auth']; + $min_pass_length = $config['installedpackages']['squidtraffic']['config'][0]['min_pass_length']; + $bypass_extended = $config['installedpackages']['squidtraffic']['config'][0]['bypass_extended']; + + $fout = fopen($squidconfig,"w"); + + /* option: shutdown_lifetime */ + fwrite($fout, "shutdown_lifetime 5 seconds\n"); + fwrite($fout, "\n"); + + /* option: icp_port */ + if($icp_port == "") $icp_port="3130"; + fwrite($fout, "icp_port " . $icp_port . "\n"); + + /* option: http_port */ + if($http_port == "") $http_port="3128"; + $int = convert_friendly_interface_to_real_interface_name($config['installedpackages']['squidng']['config'][0]['active_interface']); + $listen_ip = find_interface_ip($int); + fwrite($fout, "http_port " . $listen_ip . ":" . $http_port . "\n"); + fwrite($fout, "\n"); + + fwrite($fout, "acl QUERY urlpath_regex cgi-bin \?\n"); + fwrite($fout, "no_cache deny QUERY\n"); + + if ($domain !== "") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + $aclout = fopen("/usr/local/etc/squid/acls/dst_nocache.acl","w"); + + $domain_array = split(";",$domain); + foreach ($domain_array as $no_cache_domain) { + fwrite($aclout, $no_cache_domain . "\n"); + } + + fclose($aclout); + + fwrite($fout, 'acl no_cache_domains dstdomain "/usr/local/etc/squid/acls/dst_nocache.acl"' . "\n"); + fwrite($fout, "no_cache deny no_cache_domains\n"); + } + + fwrite($fout, "\n"); + + fwrite($fout, "cache_effective_user squid\n"); + fwrite($fout, "cache_effective_group squid\n"); + fwrite($fout, "\n"); + + fwrite($fout, "pid_filename /var/run/squid.pid\n"); + fwrite($fout, "\n"); + + if ($memory_cache_size == "") $memory_cache_size="8"; + fwrite($fout, "cache_mem " . $memory_cache_size . " MB\n"); + if ($harddisk_cache_size == "") $harddisk_cache_size="500"; + if ($level_subdirs == "") $level_subdirs="16"; + fwrite($fout, "cache_dir aufs /var/squid/cache " . $harddisk_cache_size . " " . $level_subdirs . " 256\n"); + fwrite($fout, "\n"); + + if ($error_language == "") $error_language="English"; + fwrite($fout, "error_directory /usr/local/etc/squid/errors/" . $error_language . "\n"); + fwrite($fout, "\n"); + + if ($offline_mode == "on") { + fwrite($fout, "offline_mode on\n"); + fwrite($fout, "\n"); + } + + if ($memory_replacement == "") $memory_replacement="heap GDSF"; + fwrite($fout, "memory_replacement_policy " . $memory_replacement . "\n"); + if ($cache_replacement == "") $cache_replacement="heap GDSF"; + fwrite($fout, "cache_replacement_policy " . $cache_replacement . "\n"); + fwrite($fout, "\n"); + + if ($log_enabled == "on" ) { + fwrite($fout, "cache_access_log /var/squid/logs/access.log\n"); + fwrite($fout, "cache_log /var/squid/logs/cache.log\n"); + fwrite($fout, "cache_store_log none\n"); + } else { + fwrite($fout, "cache_access_log /dev/null\n"); + fwrite($fout, "cache_log /dev/null\n"); + fwrite($fout, "cache_store_log none\n"); + } + + if ($log_query_terms == "on") { + fwrite($fout, "strip_query_terms off\n"); + } else { + fwrite($fout, "strip_query_terms on\n"); + } + + if ($log_user_agents == "on") { + fwrite($fout, "useragent_log /var/squid/logs/useragent.log\n"); + } + fwrite($fout, "\n"); + + fwrite($fout, "log_mime_hdrs off\n"); + fwrite($fout, "emulate_httpd_log on\n"); + if ($client_ip_forwarding !== "on") { + fwrite($fout, "forwarded_for off\n"); + } elseif ($user_forwarding !== "on") { + fwrite($fout, "forwarded_for off\n"); + } else { + fwrite($fout, "forwarded_for on\n"); + } + fwrite($fout, "\n"); + + if ($no_auth == "on") { + fwrite($fout, "\n"); + } + + if ($local_auth == "on") { + fwrite($fout, "auth_param basic program /usr/local/libexec/squid/ncsa_auth /usr/local/etc/squid/advanced/ncsa/passwd\n"); + fwrite($fout, "auth_param basic children 5\n"); + fwrite($fout, "auth_param basic realm pfSense Advanced Proxy Service\n"); + fwrite($fout, "auth_param basic credentialsttl 60 minutes\n"); + fwrite($fout, "\n"); + } + + /* TODO: placeholder for local user management */ + + if ($throttle_binary_files == "on") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + $binary_out = "\.bin$\n\.cab$\n\.gz$\n\.rar$\n\.sea$\n\.tar$\n\.tgz$\n\.zip$\n"; + + $throttle_out = fopen("/usr/local/etc/squid/acls/dst_throttle_binary.acl","w"); + fwrite($throttle_out, $binary_out); + fwrite($fout, 'acl for_throttled_binary url_regex -i "/usr/local/etc/squid/acls/dst_throttle_binary.acl"' . "\n"); + fclose($throttle_out); + } else { + if (file_exists("/usr/local/etc/squid/acls/dst_throttle_binary.acl")) unlink("/usr/local/etc/squid/acls/dst_throttle_binary.acl"); + } + + if ($throttle_cd_images == "on") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + + $cd_out = "\.b5t$\n\.bin$\n\.bwt$\n\.cdi$\n\.cue$\n\.gho$\n\.img$\n\.iso$\n\.mds$\n\.nrg$\n\.pqi$\n"; + + $throttle_out = fopen("/usr/local/etc/squid/acls/dst_throttle_cd.acl","w"); + fwrite($throttle_out, $cd_out); + fwrite($fout, 'acl for_throttled_cd url_regex -i "/usr/local/etc/squid/acls/dst_throttle_cd.acl"' . "\n"); + fclose($throttle_out); + } else { + if (file_exists("/usr/local/etc/squid/acls/dst_throttle_cd.acl")) unlink("/usr/local/etc/squid/acls/dst_throttle_cd.acl"); + } + + if ($throttle_multimedia == "on") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + + $multimedia_out = "\.aiff?$\n\.asf$\n\.avi$\n\.divx$\n\.mov$\n\.mp3$\n\.mpe?g$\n\.qt$\n\.ra?m$\n"; + + $throttle_out = fopen("/usr/local/etc/squid/acls/dst_throttle_multimedia.acl","w"); + fwrite($throttle_out, $multimedia_out); + fwrite($fout, 'acl for_throttled_multimedia url_regex -i "/usr/local/etc/squid/acls/dst_throttle_multimedia.acl"' . "\n"); + fclose($throttle_out); + } else { + if (file_exists("/usr/local/etc/squid/acls/dst_throttle_multimedia.acl")) unlink("/usr/local/etc/squid/acls/dst_throttle_multimedia.acl"); + } + + fwrite($fout, "acl within_timeframe time MTWHFAS 00:00-24:00\n"); + fwrite($fout, "\n"); + + /* obtain interface subnet and address for Squid rules */ + $lactive_interface = strtolower($active_interface); + + $lancfg = $config['interfaces'][$lactive_interface]; + $lanif = $lancfg['if']; + $lanip = $lancfg['ipaddr']; + $lansa = gen_subnet($lancfg['ipaddr'], $lancfg['subnet']); + $lansn = $lancfg['subnet']; + + fwrite($fout, "acl all src " . $lansa . "/" . $lansn . "\n"); + fwrite($fout, "acl localnet src " . $lansa . "/" . $lansn . "\n"); + fwrite($fout, "acl localhost src 127.0.0.1/255.255.255.255\n"); + fwrite($fout, "acl Safe_ports port 80 # http\n"); + fwrite($fout, "acl Safe_ports port 21 # ftp\n"); + fwrite($fout, "acl Safe_ports port 443 563 # https, snews\n"); + fwrite($fout, "acl Safe_ports port 70 # gopher\n"); + fwrite($fout, "acl Safe_ports port 210 # wais\n"); + fwrite($fout, "acl Safe_ports port 1025-65535 # unregistered ports\n"); + fwrite($fout, "acl Safe_ports port 280 # http-mgmt\n"); + fwrite($fout, "acl Safe_ports port 488 # gss-http\n"); + fwrite($fout, "acl Safe_ports port 591 # filemaker\n"); + fwrite($fout, "acl Safe_ports port 777 # multiling http\n"); + fwrite($fout, "acl Safe_ports port 800 # Squids port (for icons)\n"); + fwrite($fout, "\n"); + + /* allow access through proxy for custom admin port */ + $custom_port = $config['system']['webgui']['port']; + if ($custom_port !== "") { + fwrite($fout, "acl pf_admin_port port " . $custom_port . "\n"); + } + + /* define subnets allowed to utilize proxy service */ + if ($allowed_subnets !== "") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + + $aclout = fopen("/usr/local/etc/squid/acls/src_subnets.acl","w"); + + $allowed_subnets_array = split(";",$allowed_subnets); + foreach ($allowed_subnets_array as $ind_allowed_subnets) { + fwrite($aclout, $ind_allowed_subnets . "\n"); + } + + fclose($aclout); + + fwrite($fout, 'acl pf_networks src "/usr/local/etc/squid/acls/src_subnets.acl"' . "\n"); + } + + /* define ip addresses that have 'unrestricted' access */ + if ($unrestricted_ip_address !== "") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + $aclout = fopen("/usr/local/etc/squid/acls/src_unrestricted_ip.acl","w"); + + $unrestricted_ip_array = split(";",$unrestricted_ip_address); + foreach ($unrestricted_ip_array as $ind_unrestricted_ip) { + fwrite($aclout, $ind_unrestricted_ip . "\n"); + } + + fclose($aclout); + + fwrite($fout, 'acl pf_unrestricted_ip src "/usr/local/etc/squid/acls/src_unrestricted_ip.acl"' . "\n"); + } + + /* define mac addresses that have 'unrestricted' access */ + if ($unrestricted_mac_addresses !== "") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + + $aclout = fopen("/usr/local/etc/squid/acls/src_unrestricted_mac.acl","w"); + + $unrestricted_mac_array = split(";",$unrestricted_mac_addresses); + foreach ($unrestricted_mac_array as $ind_unrestricted_mac) { + fwrite($aclout, $ind_unrestricted_mac . "\n"); + } + + fclose($aclout); + + fwrite($fout, 'acl pf_unrestricted_mac src "/usr/local/etc/squid/acls/src_unrestricted_mac.acl"' . "\n"); + } + + /* define ip addresses that are banned from using the proxy service */ + if ($banned_ip_addresses !== "") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + + $aclout = fopen("/usr/local/etc/squid/acls/src_banned_ip.acl","w"); + + $banned_ip_array = split(";",$banned_ip_addresses); + foreach ($banned_ip_array as $ind_banned_ip) { + fwrite($aclout, $ind_banned_ip . "\n"); + } + + fclose($aclout); + + fwrite($fout, 'acl pf_banned_ip src "/usr/local/etc/squid/acls/src_banned_ip.acl"' . "\n"); + } + + /* define mac addresses that are banned from using the proxy service */ + if ($banned_mac_addresses !== "") { + if (!file_exists("/usr/local/etc/squid/acls")) mwexec("/bin/mkdir -p /usr/local/etc/squid/acls"); + + $aclout = fopen("/usr/local/etc/squid/acls/src_banned_mac.acl","w"); + + $banned_mac_array = split(";",$banned_mac_addresses); + foreach ($banned_mac_array as $ind_banned_mac) { + fwrite($aclout, $ind_banned_mac . "\n"); + } + + fclose($aclout); + + fwrite($fout, 'acl pf_banned_mac src "/usr/local/etc/squid/acls/src_banned_mac.acl"' . "\n"); + } + + fwrite($fout, "acl CONNECT method CONNECT\n"); + fwrite($fout, "\n"); + + fwrite($fout, "#access to squid; local machine; no restrictions\n"); + fwrite($fout, "http_access allow localnet\n"); + fwrite($fout, "http_access allow localhost\n"); + fwrite($fout, "\n"); + + fwrite($fout, "#Deny non web services\n"); + fwrite($fout, "http_access deny !Safe_ports\n"); + fwrite($fout, "http_access deny CONNECT\n"); + fwrite($fout, "\n"); + + fwrite($fout, "#Set custom configured ACLs\n"); + fwrite($fout, "http_access deny all\n"); + fwrite($fout, "\n"); + + if ($dl_overall !== "" and $dl_per_host == "") { + fwrite($fout, "#Set throttle and bandwidth restrictions\n"); + + fwrite($fout, "delay_pools 1\n"); + fwrite($fout, "delay_class 1 3\n"); + + if ($dl_overall == "unlimited") { + fwrite($fout, "delay_parameters 1 -1/-1 -1/-1 " . ($dl_overall * 125) . "/" . ($dl_overall * 250) . "\n"); + } else { + fwrite($fout, "delay_parameters 1 " . ($dl_overall * 125) . "/" . ($dl_overall * 250) . " -1/-1 -1/-1\n"); + } + + /* if no unrestricted ip addresses are defined; this line is ignored */ + if ($unrestricted_ip_address == "") fwrite($fout, "delay_access 1 deny pf_unrestricted_ip\n"); + + fwrite($fout, "#delay_access 1 deny for_extended_users\n"); + + /* this will define bandwidth delay restrictions for specified throttles */ + if ($throttle_binary_files == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_binary\n"); + } + if ($throttle_cd_images == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_cd\n"); + } + if ($throttle_multimedia == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_multimedia\n"); + } else { + fwrite($fout, "delay_access 1 allow all\n"); + } + fwrite($fout, "delay_initial_bucket_level 100%\n\n"); + } + + if ($dl_per_host !== "" and $dl_overall == "") { + fwrite($fout, "#Set throttle and bandwidth restrictions\n"); + + fwrite($fout, "delay_pools 1\n"); + fwrite($fout, "delay_class 1 3\n"); + + if ($dl_per_host == "unlimited") { + fwrite($fout, "delay_parameters 1 " . ($dl_per_host * 125) . "/" . ($dl_per_host * 250) . "-1/-1 -1/-1\n"); + } else { + fwrite($fout, "delay_parameters 1 -1/-1 -1/-1 " . ($dl_per_host * 125) . "/" . ($dl_per_host * 250) . "\n"); + } + + /* if no unrestricted ip addresses are defined; this line is ignored */ + if ($unrestricted_ip_address !== "") fwrite($fout, "delay_access 1 deny pf_unrestricted_ip\n"); + + fwrite($fout, "#delay_access 1 deny for_extended_users\n"); + + /* this will define bandwidth delay restrictions for specified throttles */ + if ($throttle_binary_files == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_binary\n"); + } + if ($throttle_cd_images == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_cd\n"); + } + if ($throttle_multimedia == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_multimedia\n"); + } else { + fwrite($fout, "delay_access 1 allow all\n"); + } + fwrite($fout, "delay_initial_bucket_level 100%\n\n"); + fwrite($fout, "\n"); + } + + if ($dl_overall !== "" and $dl_per_host !== "") { + /* if no bandwidth restrictions are specified, then these parameters are not necessary */ + if ($dl_overall !== "unlimited" and $dl_per_host !== "unlimited") { + fwrite($fout, "#Set throttle and bandwidth restrictions\n"); + + if ($dl_overall == "unlimited" and $dl_per_host !== "") { + fwrite($fout, "delay_pools 1\n"); + fwrite($fout, "delay_class 1 3\n"); + fwrite($fout, "delay_parameters 1 -1/-1 -1/-1 " . ($dl_per_host * 125) . "/" . ($dl_overall * 250) . "\n"); + } elseif ($dl_overall !== "" and $dl_per_host == "unlimited") { + fwrite($fout, "delay_pools 1\n"); + fwrite($fout, "delay_class 1 3\n"); + fwrite($fout, "delay_parameters 1 " . ($dl_overall * 125) . "/" . ($dl_overall * 250) . " -1/-1 -1/-1\n"); + } + } + + if ($dl_overall !== "unlimited" and $dl_per_host !== "unlimited") { + + /* if no unrestricted ip addresses are defined; this line is ignored */ + if ($unrestricted_ip_address !== "") fwrite($fout, "delay_access 1 deny pf_unrestricted_ip\n"); + + fwrite($fout, "#delay_access 1 deny for_extended_users\n"); + + /* this will define bandwidth delay restrictions for specified throttles */ + if ($throttle_binary_files == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_binary\n"); + } + if ($throttle_cd_images == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_cd\n"); + } + if ($throttle_multimedia == "on") { + fwrite($fout, "delay_access 1 allow all for_throttled_multimedia\n"); + } else { + fwrite($fout, "delay_access 1 allow all\n"); + } + fwrite($fout, "delay_initial_bucket_level 100%\n\n"); + } + } + + fwrite($fout, "#Strip HTTP Header\n"); + fwrite($fout, "header_access X-Forwarded-For deny all\n"); + fwrite($fout, "header_access Via deny all\n"); + fwrite($fout, "\n"); + + /* TODO: acl customization for snmp support */ + fwrite($fout, "snmp_access deny all\n"); + fwrite($fout, "\n"); + + if ($urlfilter_enable == "on") { + fwrite($fout, "redirect_program /usr/sbin/squidGuard"); + fwrite($fout, "redirect_children 5"); + fwrite($fout, "\n"); + } + + if ($max_upload_size != "") { + fwrite($fout, "request_body_max_size " . $max_download_size . "KB\n"); + } + + if ($max_download_size != "") { + if ($unrestricted_ip_addresses !== "") fwrite($fout, "reply_body_max_size 0 allow pf_unrestricted_ip\n"); + fwrite($fout, "#reply_body_max_size 0 allow for_extended_users\n"); + fwrite($fout, "reply_body_max_size " . $max_download_size * 1024 . " allow all\n"); + fwrite($fout, "\n"); + } + + if ($visible_hostname !== "") { + fwrite($fout, "visible_hostname " . $visible_hostname . "\n"); + } + + if ($cache_admin_email !== "") { + fwrite($fout, "cache_mgr " . $cache_admin_email . "\n"); + fwrite($fout, "\n"); + } + + if ($maximum_object_size == "") $maximum_object_size="4096"; + if ($minimum_object_size == "") $minimum_object_size="0"; + fwrite($fout, "maximum_object_size " . $maximum_object_size . " KB\n"); + fwrite($fout, "minimum_object_size " . $minimum_object_size . " KB\n"); + fwrite($fout, "\n"); + + if ($proxy_forwarding == "on") { + fwrite($fout, "cache_peer " . $upstream_proxy . "parent " . $upstream_proxy_port . "3130 login=" . upstream_username . ":" . upstream_password . " default no-query\n"); + fwrite($fout, "never_direct allow all\n"); + } + + if ($transparent_proxy == "on") { + fwrite($fout, "httpd_accel_host virtual\n"); + fwrite($fout, "httpd_accel_port 80\n"); + fwrite($fout, "httpd_accel_with_proxy on\n"); + fwrite($fout, "httpd_accel_uses_host_header on\n"); + fwrite($fout, "\n"); + } + + fclose($fout); + + conf_mount_ro(); + config_unlock(); + + touch($squidconfig); +} /* end function write_squid_config */ + |