'none', 'descr' => 'none'); foreach ($config['cert'] as $cert) { $cert_arr[] = array('refid' => $cert['refid'], 'descr' => $cert['descr']); } return $cert_arr; } /* Handle root CA certificates bundle */ function squid_check_ca_hashes() { global $config, $g; // check certificates $cert_count = 0; if (is_dir(SQUID_LOCALBASE . '/share/certs')) { if ($handle = opendir(SQUID_LOCALBASE . '/share/certs')) { while (false !== ($file = readdir($handle))) { if (preg_match ("/\d+.0/", $file)) { $cert_count++; } } closedir($handle); } } if ($cert_count < 10) { conf_mount_rw(); // create ca-root hashes from ca-root-nss package log_error("[squid] Creating root certificate bundle hashes from the Mozilla Project..."); $cas = file(SQUID_LOCALBASE . '/share/certs/ca-root-nss.crt'); $cert = 0; foreach ($cas as $ca) { if (preg_match("/--BEGIN CERTIFICATE--/", $ca)) { $cert = 1; } if ($cert == 1) { $crt .= $ca; } if (preg_match("/-END CERTIFICATE-/", $ca)) { file_put_contents("/tmp/cert.pem", $crt, LOCK_EX); $cert_hash = array(); exec("/usr/bin/openssl x509 -hash -noout -in /tmp/cert.pem", $cert_hash); file_put_contents(SQUID_LOCALBASE . "/share/certs/" . $cert_hash[0] . ".0", $crt, LOCK_EX); $crt = ""; $cert = 0; } } } } /* * Squid cache setup */ /* Create Squid disk cache directories */ function squid_dash_z($cache_action = 'none') { global $config; // We need cache configured after initial package install if (!is_array($config['installedpackages']['squidcache']['config'])) { log_error("[squid] 'Local Cache' not configured, disk cache will be disabled."); log_error("[squid] Please, configure and save 'Local Cache' settings before enabling Squid proxy."); return; } if (is_array($config['installedpackages']['squidcache'])) { $cachesettings = $config['installedpackages']['squidcache']['config'][0]; } else { $cachesettings = array(); } $cachedir = ($cachesettings['harddisk_cache_location'] ? $cachesettings['harddisk_cache_location'] : '/var/squid/cache'); $numdirs = ($cachesettings['level1_subdirs'] ? $cachesettings['level1_subdirs'] : 16); if (is_dir($cachedir)) { $currentdirs = count(glob("{$cachedir}/*", GLOB_ONLYDIR)); } else { $currentdirs = 0; } // If the cache system is null, there is no need to initialize the (irrelevant) cache dir. // If it already exists, delete it. if ($cachesettings['harddisk_cache_system'] == "null") { if (is_dir($cachedir)) { if (substr($cachedir, 0, 11) === "/var/squid/") { log_error("[squid] Deleting cache dir '{$cachedir}' since 'Hard Disk Cache System' is set to null..."); // cannot nuke disk cache while Squid is running squid_stop_monitor(); if (is_service_running('squid')) { stop_service("squid"); } @rename($cachedir, "{$cachedir}.old"); mwexec_bg("/bin/rm -rf {$cachedir}.old"); squid_restart_services(); } else { log_error("[squid] 'Hard Disk Cache System' is set to null."); log_error("[squid] Will NOT delete cache dir '{$cachedir}' since it is not located under /var/squid. Delete manually if required."); } } return; } // Re-create the cachedir if clean is forced by manually, // or if the cachedir changed, or level1_subdirs don't exist or the number of level1_subdirs changed if ($cache_action == "clean" || !is_dir($cachedir) || !is_dir($cachedir . '/00') || $numdirs != $currentdirs) { // cannot nuke disk cache while Squid is running squid_stop_monitor(); if (is_service_running('squid')) { stop_service("squid"); } if (is_dir($cachedir)) { if (substr($cachedir, 0, 11) === "/var/squid/") { @rename($cachedir, "{$cachedir}.old"); mwexec_bg("/bin/rm -rf {$cachedir}.old"); } else { log_error("[squid] Will NOT delete cache dir '{$cachedir}' since it is not located under /var/squid. Delete manually if required."); } } squid_create_cachedir(); squid_restart_services(); } } /* Helper function for squid_dash_z() */ function squid_create_cachedir() { global $config; if (is_array($config['installedpackages']['squidcache'])) { $cachesettings = $config['installedpackages']['squidcache']['config'][0]; } else { $cachesettings = array(); } $cachedir = ($cachesettings['harddisk_cache_location'] ? $cachesettings['harddisk_cache_location'] : '/var/squid/cache'); if (!is_dir($cachedir)) { log_error("[squid] Creating cache dir '{$cachedir}' ..."); safe_mkdir($cachedir, 0755); @chown($cachedir, SQUID_UID); @chgrp($cachedir, SQUID_GID); } if (!is_dir($cachedir . '/00')) { log_error("[squid] Creating Squid cache subdirs in {$cachedir} ..."); mwexec(SQUID_BASE. "/sbin/squid -z -f " . SQUID_CONFFILE); // Double check permissions here, should be safe to recurse cache dir if it's small here. squid_chown_recursive($cachedir, SQUID_UID, SQUID_GID); } if (file_exists("/var/squid/cache/swap.state")) { chown("/var/squid/cache/swap.state", SQUID_UID); chgrp("/var/squid/cache/swap.state", SQUID_GID); chmod("/var/squid/cache/swap.state", 0666); } } /* * rc scripts, services and cronjobs */ /* Handle cronjob install/uninstall */ function squid_install_cron($should_install) { if (platform_booting()) { return; } $cron_cmd = SQUID_BASE . "/sbin/squid -k rotate -f " . SQUID_CONFFILE; /* * This is here to prevent Squid from filling disk completely on misconfigured boxes. * When 'Hard Disk Cache System' is set to null, the script silently returns, no need to check here. * Otherwise, swapstate_check.php will only clear the disk cache on the following conditions: * - if the swap.state file is taking up more than 75% of disk space, * - or the drive is 90% full and swap.state is larger than 1GB. */ $swapstate_cmd = "/usr/local/pkg/swapstate_check.php"; if (($should_install) && (squid_enabled())) { log_error("[squid] Adding cronjobs ..."); install_cron_job("{$cron_cmd}", $should_install, "0", "0", "*", "*", "*", "root"); install_cron_job("{$swapstate_cmd}", $should_install, "15", "0", "*", "*", "*", "root"); } else { log_error("[squid] Removing cronjobs ..."); install_cron_job("{$cron_cmd}", false); install_cron_job("{$swapstate_cmd}", false); } } /* Create /usr/local/etc/rc.d/squid.sh rc script */ function squid_write_rcfile() { /* Declare a variable for the SQUID_CONFFILE constant. */ /* Then the variable can be referenced easily in the heredoc text that generates the rc file. */ $squid_conffile_var = SQUID_CONFFILE; $squid_base = SQUID_BASE; $rc = array(); $rc['file'] = 'squid.sh'; $rc['start'] = <<< EOD #/sbin/sysctl net.inet.ip.portrange.reservedhigh=0 if [ -z "`/bin/ps auxw | /usr/bin/grep "[s]quid " | /usr/bin/awk '{print $2}'`" ]; then {$squid_base}/sbin/squid -f {$squid_conffile_var} fi EOD; $rc['stop'] = <<< EOD {$squid_base}/sbin/squid -k shutdown -f {$squid_conffile_var} # Just to be sure... sleep 5 if [ -n "`/bin/ps auxw | /usr/bin/grep "[s]quid " | /usr/bin/awk '{print $2}'`" ]; then {$squid_base}/sbin/squid -k kill -f {$squid_conffile_var} fi if [ -x /usr/bin/ipcs ]; then # http://man.chinaunix.net/newsoft/squid/Squid_FAQ/FAQ-22.html#ss22.8 /usr/bin/ipcs | /usr/bin/grep '^[mq]' | /usr/bin/awk '{printf "ipcrm -%s %s\\n", $1, $2}' | /bin/sh fi /usr/bin/killall -9 squid 2>/dev/null /usr/bin/killall pinger 2>/dev/null EOD; conf_mount_rw(); write_rcfile($rc); conf_mount_ro(); } /* Start sqp_monitor.sh watchdog script */ function squid_start_monitor() { if (squid_enabled()) { if (!exec("/bin/ps auxw | /usr/bin/grep '[s]qpmon'")) { log_error("[squid] Starting a proxy monitor script"); mwexec_bg("/usr/local/etc/rc.d/sqp_monitor.sh start"); } sleep(1); } else { log_error("[squid] Squid is disabled. Not starting a proxy monitor script"); } } /* Stop sqp_monitor.sh watchdog script */ function squid_stop_monitor() { /* kill any running proxy alarm scripts */ if (exec("/bin/ps auxw | /usr/bin/grep '[s]qpmon'")) { log_error("[squid] Stopping any running proxy monitors"); mwexec("/usr/local/etc/rc.d/sqp_monitor.sh stop"); } sleep(1); } /* Start and/or stop services according to Squid configuration */ function squid_restart_services() { global $config; // do not (re)start squid services on boot if (platform_booting()) { return; } if (squid_enabled()) { /* kill any running proxy alarm scripts */ squid_stop_monitor(); if (!is_service_running('squid')) { log_error("[squid] Starting service..."); mwexec(SQUID_BASE . "/sbin/squid -f " . SQUID_CONFFILE); } else { log_error("[squid] Reloading for configuration sync..."); mwexec(SQUID_BASE . "/sbin/squid -k reconfigure -f " . SQUID_CONFFILE); } // sleep for a couple seconds to give squid a chance to fire up fully. for ($i = 0; $i < 10; $i++) { if (!is_service_running('squid')) { sleep(1); } } /* restart proxy alarm scripts */ squid_start_monitor(); } else { /* Squid is disabled - kill any running proxy alarm scripts and stop Squid services */ squid_stop_monitor(); if (is_service_running('squid')) { log_error("[squid] Stopping service..."); stop_service("squid"); } } } /* * Squid package install/uninstall */ function squid_install_command() { global $config, $g; /* Set storage system for nanobsd */ if (!is_array($config['installedpackages']['squidcache'])) { $config['installedpackages']['squidcache'] = array(); } if ($g['platform'] == "nanobsd") { $config['installedpackages']['squidcache']['config'][0]['harddisk_cache_system'] = 'null'; } // migrate configuration from old versions squid_upgrade_config(); /* make sure pinger is executable and suid root */ // XXX: Bug #5114 if (file_exists(SQUID_LOCALBASE . "/libexec/squid/pinger")) { chgrp(SQUID_LOCALBASE . "/libexec/squid/pinger", SQUID_GID); } // another PBI hack if (SQUID_BASE != '/usr/local' && file_exists('/usr/local/bin/check_ip.php') && !file_exists(SQUID_BASE . '/bin/check_ip.php')) { symlink("/usr/local/bin/check_ip.php", SQUID_BASE . "/bin/check_ip.php"); } // create squid rcfile squid_write_rcfile(); // create squid monitor rcfile write_rcfile(array( "file" => "sqp_monitor.sh", "start" => "/usr/local/pkg/sqpmon.sh &", "stop" => "/bin/ps awux | /usr/bin/grep \"sqpmon\" | /usr/bin/grep -v \"grep\" | /usr/bin/grep -v \"php\" | /usr/bin/awk '{ print $2 }' | /usr/bin/xargs kill") ); // antivirus intergration squid_antivirus_install_command(); foreach (array(SQUID_CONFBASE, SQUID_ACLDIR, SQUID_SSL_DB) as $dir) { safe_mkdir($dir, 0755); squid_chown_recursive($dir, SQUID_UID, SQUID_GID); } if (!file_exists(SQUID_CONFBASE . '/mime.conf') && file_exists(SQUID_CONFBASE . '/mime.conf.default')) { copy(SQUID_CONFBASE . '/mime.conf.default', SQUID_CONFBASE . '/mime.conf'); } // remove unwanted PBI rc script unlink_if_exists("/usr/local/etc/rc.d/squid"); // remove broken cronjobs possibly left over after 'Clear Cache on Log Rotate' misfeature install_cron_job("/usr/local/pkg/swapstate_check.php clean;", false); install_cron_job("/bin/rm /var/squid/cache/swap.state;", false); } function squid_deinstall_command() { global $config, $g, $keep; /* remove cronjobs */ squid_install_cron(false); /* kill all running services */ mwexec('/usr/local/etc/rc.d/sqp_monitor.sh stop'); mwexec("/bin/ps awux | /usr/bin/egrep -i '[s]quid -f|\([s]quid\)' | /usr/bin/awk '{ print $2 }' | /usr/bin/xargs kill"); mwexec("/bin/ps awux | /usr/bin/grep '[d]iskd' | /usr/bin/awk '{ print $2 }' | /usr/bin/xargs kill"); mwexec("/bin/ps awux | /usr/bin/grep '[d]nsserver' | /usr/bin/awk '{ print $2 }' | /usr/bin/xargs kill"); mwexec("/bin/ps awux | /usr/bin/grep '[u]nlinkd' | /usr/bin/awk '{ print $2 }' | /usr/bin/xargs kill"); /* delete rc scripts */ unlink_if_exists('/usr/local/etc/rc.d/sqp_monitor.sh'); unlink_if_exists('/usr/local/etc/rc.d/squid.sh'); /* clean up created directories if 'Keep Settings/Data' is disabled */ if (is_array($config['installedpackages']['squidcache'])) { $cachesettings = $config['installedpackages']['squidcache']['config'][0]; } else { $cachesettings = array(); } $cachedir = ($cachesettings['harddisk_cache_location'] ? $cachesettings['harddisk_cache_location'] : '/var/squid/cache'); if (is_array($config['installedpackages']['squid'])) { $squidsettings = $config['installedpackages']['squid']['config'][0]; } else { $squidsettings = array(); } $logdir = ($squidsettings['log_dir'] ? $squidsettings['log_dir'] : '/var/squid/logs'); $keep = ($squidsettings['keep_squid_data'] ? true : false); if (!$keep) { if (is_dir("{$cachedir}")) { if (substr($cachedir, 0, 11) === "/var/squid/") { mwexec_bg("/bin/rm -rf {$cachedir}"); } else { log_error("[squid] Will NOT delete Squid cache dir '{$cachedir}' since it is not located under /var/squid. Delete manually if required."); } } if (is_dir("{$logdir}")) { if (substr($logdir, 0, 11) === "/var/squid/") { mwexec("/bin/rm -rf {$logdir}"); } else { log_error("[squid] Will NOT delete Squid log dir '{$logdir}' since it is not located under /var/squid. Delete manually if required."); } } $dirs = array("/var/run/squid", "/var/squid"); foreach ($dirs as $dir) { if (is_dir("{$dir}")) { mwexec("/bin/rm -rf {$dir}"); } } } // remove antivirus integration features squid_antivirus_deinstall_command(); filter_configure(); /* Remove package settings from config if 'Keep Settings/Data' is disabled */ if (!$keep) { log_error("[squid] Removing all Squid settings since 'Keep Settings/Data' is disabled..."); if (is_array($config['installedpackages']['squid'])) { unset($config['installedpackages']['squid']); } if (is_array($config['installedpackages']['squidantivirus'])) { unset($config['installedpackages']['squidantivirus']); } if (is_array($config['installedpackages']['squidauth'])) { unset($config['installedpackages']['squidauth']); } if (is_array($config['installedpackages']['squidcache'])) { unset($config['installedpackages']['squidcache']); } if (is_array($config['installedpackages']['squidnac'])) { unset($config['installedpackages']['squidnac']); } if (is_array($config['installedpackages']['squidreverse'])) { unset($config['installedpackages']['squidreverse']); } if (is_array($config['installedpackages']['squidreversegeneral'])) { unset($config['installedpackages']['squidreversegeneral']); } if (is_array($config['installedpackages']['squidreversepeer'])) { unset($config['installedpackages']['squidreversepeer']); } if (is_array($config['installedpackages']['squidreverseredir'])) { unset($config['installedpackages']['squidreverseredir']); } if (is_array($config['installedpackages']['squidreverseuri'])) { unset($config['installedpackages']['squidreverseuri']); } if (is_array($config['installedpackages']['squidsync'])) { unset($config['installedpackages']['squidsync']); } if (is_array($config['installedpackages']['squidtraffic'])) { unset($config['installedpackages']['squidtraffic']); } if (is_array($config['installedpackages']['squidremote'])) { unset($config['installedpackages']['squidremote']); } if (is_array($config['installedpackages']['squidusers'])) { unset($config['installedpackages']['squidusers']); } } } /* Migrate configuration from god knows which Squid package versions */ /* None of these ever existed with Squid 3.4 package and this cruft should be most likely just removed */ function squid_upgrade_config() { global $config; /* migrate existing csv config fields */ if (is_array($config['installedpackages']['squidauth']['config'])) { $settingsauth = $config['installedpackages']['squidauth']['config'][0]; } if (is_array($config['installedpackages']['squidcache']['config'])) { $settingscache = $config['installedpackages']['squidcache']['config'][0]; } if (is_array($config['installedpackages']['squidnac']['config'])) { $settingsnac = $config['installedpackages']['squidnac']['config'][0]; } if (is_array($config['installedpackages']['squid']['config'])) { $settingsgen = $config['installedpackages']['squid']['config'][0]; } /* migrate auth settings */ if (!empty($settingsauth['no_auth_hosts']) && strstr($settingsauth['no_auth_hosts'], ",")) { $settingsauth['no_auth_hosts'] = base64_encode(implode("\n", explode(",", $settingsauth['no_auth_hosts']))); $config['installedpackages']['squidauth']['config'][0]['no_auth_hosts'] = $settingsauth['no_auth_hosts']; } /* migrate cache settings */ if (!empty($settingscache['donotcache']) && strstr($settingscache['donotcache'], ",")) { $settingscache['donotcache'] = base64_encode(implode("\n", explode(",", $settingscache['donotcache']))); $config['installedpackages']['squidcache']['config'][0]['donotcache'] = $settingscache['donotcache']; } /* unset broken dynamic caching patterns removed since Squid3 package v0.4.3 */ if (!empty($config['installedpackages']['squidcache']['config']['refresh_patterns'])) { unset($config['installedpackages']['squidcache']['config']['refresh_patterns']); } /* migrate nac settings */ if (!empty($settingsnac['allowed_subnets']) && strstr($settingsnac['allowed_subnets'], ",")) { $settingsnac['allowed_subnets'] = base64_encode(implode("\n", explode(",", $settingsnac['allowed_subnets']))); $config['installedpackages']['squidnac']['config'][0]['allowed_subnets'] = $settingsnac['allowed_subnets']; } if (!empty($settingsnac['banned_hosts']) && strstr($settingsnac['banned_hosts'], ",")) { $settingsnac['banned_hosts'] = base64_encode(implode("\n", explode(",", $settingsnac['banned_hosts']))); $config['installedpackages']['squidnac']['config'][0]['banned_hosts'] = $settingsnac['banned_hosts']; } if (!empty($settingsnac['banned_macs']) && strstr($settingsnac['banned_macs'], ",")) { $settingsnac['banned_macs'] = base64_encode(implode("\n", explode(",", $settingsnac['banned_macs']))); $config['installedpackages']['squidnac']['config'][0]['banned_macs'] = $settingsnac['banned_macs']; } if (!empty($settingsnac['unrestricted_hosts']) && strstr($settingsnac['unrestricted_hosts'], ",")) { $settingsnac['unrestricted_hosts'] = base64_encode(implode("\n", explode(",", $settingsnac['unrestricted_hosts']))); $config['installedpackages']['squidnac']['config'][0]['unrestricted_hosts'] = $settingsnac['unrestricted_hosts']; } if (!empty($settingsnac['unrestricted_macs']) && strstr($settingsnac['unrestricted_macs'], ",")) { $settingsnac['unrestricted_macs'] = base64_encode(implode("\n", explode(",", $settingsnac['unrestricted_macs']))); $config['installedpackages']['squidnac']['config'][0]['unrestricted_macs'] = $settingsnac['unrestricted_macs']; } if (!empty($settingsnac['whitelist']) && strstr($settingsnac['whitelist'], ",")) { $settingsnac['whitelist'] = base64_encode(implode("\n", explode(",", $settingsnac['whitelist']))); $config['installedpackages']['squidnac']['config'][0]['whitelist'] = $settingsnac['whitelist']; } if (!empty($settingsnac['blacklist']) && strstr($settingsnac['blacklist'], ",")) { $settingsnac['blacklist'] = base64_encode(implode("\n", explode(",", $settingsnac['blacklist']))); $config['installedpackages']['squidnac']['config'][0]['blacklist'] = $settingsnac['blacklist']; } if (!empty($settingsnac['block_user_agent']) && strstr($settingsnac['block_user_agent'], ",")) { $settingsnac['block_user_agent'] = base64_encode(implode("\n", explode(",", $settingsnac['block_user_agent']))); $config['installedpackages']['squidnac']['config'][0]['block_user_agent'] = $settingsnac['block_user_agent']; } if (!empty($settingsnac['block_reply_mime_type']) && strstr($settingsnac['block_reply_mime_type'], ",")) { $settingsnac['block_reply_mime_type'] = base64_encode(implode("\n", explode(",", $settingsnac['block_reply_mime_type']))); $config['installedpackages']['squidnac']['config'][0]['block_reply_mime_type'] = $settingsnac['block_reply_mime_type']; } /* migrate reverse proxy settings */ squid_reverse_upgrade_config(); /* unset broken antivirus settings */ squid_antivirus_upgrade_config(); write_config(); } /* * Squid input validation */ /* Proxy Server: General Settings input validation */ function squid_validate_general($post, &$input_errors) { global $config; if (is_array($config['installedpackages']['squid'])) { $settings = $config['installedpackages']['squid']['config'][0]; } else { $settings = array(); } // force users to configure cache if (!is_array($config['installedpackages']['squidcache']['config'])) { $input_errors[] = "Please, configure and save 'Local Cache' settings first."; } // force users to select at least one proxy or reverse proxy interface when enabling Squid if ($post['enable_squid'] == "on") { // if reverse proxy is configured, perhaps the user wants to use the reverse proxy features only if (!squid_reverse_enabled()) { if (empty($post['active_interface'])) { $input_errors[] = "You must select at least one interface under 'Proxy Interface(s)' to enable Squid proxy."; $input_errors[] = "If you intend to use Squid as reverse proxy ONLY, then visit Services: Squid Proxy Server: General, configure and save the reverse proxy settings first."; } } else { log_error("[squid] Enabled as reverse proxy ONLY. If this is not what you intended, visit Services: Squid Proxy Server: General and configure proxy interfaces."); } } $icp_port = trim($post['icp_port']); if (!empty($icp_port) && !is_port($icp_port)) { $input_errors[] = "You must enter a valid port number in the 'ICP port' field."; } unset($icp_port); if (substr($post['log_dir'], -1, 1) == '/') { $input_errors[] = 'Log location must not end with a / character.'; } if ($post['log_dir']{0} != '/') { $input_errors[] = 'Log location must start with a / character.'; } if (strlen($post['log_dir']) <= 3) { $input_errors[] = "Configured log location directory is not valid."; } $log_rotate = trim($post['log_rotate']); if (!empty($log_rotate) && (!is_numericint($log_rotate) or ($log_rotate < 1))) { $input_errors[] = "You must enter a valid number of days in the 'Log rotate' field."; } unset($log_rotate); // check that the proxy port does not clash with WebGUI $port = ($settings['proxy_port'] ? $settings['proxy_port'] : 3128); $port = $post['proxy_port'] ? $post['proxy_port'] : $port; $webgui_port = $config['system']['webgui']['port']; if (($config['system']['webgui']['port'] == "") && ($config['system']['webgui']['protocol'] == "http")) { $webgui_port = 80; } if (($config['system']['webgui']['port'] == "") && ($config['system']['webgui']['protocol'] == "https")) { $webgui_port = 443; } if (($post['transparent_proxy'] != 'on') && ($port == $webgui_port)) { $input_errors[] = "You can not run Squid on the same port as the pfSense WebGUI"; } unset($port, $webgui_port); if ($post['transparent_proxy'] == 'on') { if (empty($post['transparent_active_interface'])) { $input_errors[] = "You must select at least one interface under 'Transparent Proxy Interface(s)' when 'Transparent HTTP Proxy' is enabled."; } else { // allow transparent proxy only on interfaces where Squid is actually running to keep configuration sane $a_ifaces = $post['active_interface'] ?: array(); $t_ifaces = $post['transparent_active_interface']; foreach ($t_ifaces as $t_iface) { if (!in_array($t_iface, $a_ifaces)) { $err_iface = convert_friendly_interface_to_friendly_descr($t_iface); $input_errors[] = "'Transparent Proxy Interface(s)' may only contain interfaces also selected in 'Proxy Interface(s)' above. '{$err_iface}' is not valid."; unset($err_iface); } } unset($a_ifaces, $t_iface, $t_ifaces); } } if ($post['ssl_proxy'] == 'on') { if ($post['dca'] == 'none') { $input_errors[] = "SSL interception cannot be enabled without a CA."; } if (empty($post['ssl_active_interface'])) { $input_errors[] = "You must select at least one interface under 'SSL Intercept Interface(s)' when 'HTTPS/SSL Interception' is enabled."; } else { // allow HTTPS/SSL Interception only on interfaces where Squid is actually running to keep configuration sane $a_ifaces = $post['active_interface'] ?: array(); $s_ifaces = $post['ssl_active_interface']; foreach ($s_ifaces as $s_iface) { if (!in_array($s_iface, $a_ifaces)) { $err_iface = convert_friendly_interface_to_friendly_descr($s_iface); $input_errors[] = "'SSL Intercept Interface(s)' may only contain interfaces also selected in 'Proxy Interface(s)' above. '{$err_iface}' is not valid."; unset($err_iface); } } unset($a_ifaces, $s_ifaces, $s_iface); } } foreach (array('defined_ip_proxy_off') as $hosts) { foreach (explode(";", $post[$hosts]) as $host) { $host = trim($host); if (!empty($host) && !is_ipaddr($host) && !is_alias($host) && !is_hostname($host) && !is_subnet($host)) { $input_errors[] = "'Bypass proxy for these source IPs' entry '$host' is not a valid IP address, hostname, or alias."; } } } unset($host, $hosts); foreach (array('defined_ip_proxy_off_dest') as $hosts) { foreach (explode(";", $post[$hosts]) as $host) { $host = trim($host); if (!empty($host) && !is_ipaddr($host) && !is_alias($host) && !is_hostname($host) && !is_subnet($host)) { $input_errors[] = "'Bypass proxy for these destination IPs' entry '$host' is not a valid IP address, hostname, or alias."; } } } unset($host, $hosts); if (!empty($post['dns_nameservers'])) { $altdns = explode(";", ($post['dns_nameservers'])); foreach ($altdns as $dnssrv) { if (!is_ipaddr($dnssrv)) { $input_errors[] = "You must enter a valid IP address in the 'Alternate DNS servers' field."; break; } } } unset($altdns, $dnssrv); } /* Proxy Server: Remote Proxy Settings input validation */ function squid_validate_upstream($post, &$input_errors) { if ($post['enabled'] != 'on') { return; } $addr = trim($post['proxyaddr']); if (empty($addr)) { $input_errors[] = "The 'Proxy hostname' field is required"; } else { if (!is_ipaddr($addr) && !is_domain($addr)) { $input_errors[] = "You must enter a valid IP address or host name in the 'Proxy hostname' field."; } } foreach (array('proxyport' => 'TCP port', 'icpport' => 'ICP port') as $field => $name) { $port = trim($post[$field]); if (empty($port)) { $input_errors[] = "The '$name' field is required."; } else { if (!is_port($port)) { $input_errors[] = "The '$name' field must contain a valid port number (1-65535)."; } } } unset($port); } /* Proxy Server: Cache Management input validation */ function squid_validate_cache($post, &$input_errors) { /* Manually clear hard disk cache */ if ($post['clear_cache'] == 'Clear Disk Cache NOW') { log_error("[squid] Clear disk cache forced via GUI. Clearing cache now..."); squid_dash_z("clean"); return; } $num_fields = array( 'harddisk_cache_size' => 'Hard disk cache size', 'memory_cache_size' => 'Memory cache size', 'maximum_object_size' => 'Maximum object size', ); foreach ($num_fields as $field => $name) { $value = trim($post[$field]); if (!is_numericint($value)) { $input_errors[] = "You must enter a valid value for '$field'."; } } unset($num_fields); $value = trim($post['minimum_object_size']); if (!is_numericint($value)) { $input_errors[] = "You must enter a valid value for 'Minimum object size'."; } unset($value); if (!empty($post['cache_swap_low'])) { $value = trim($post['cache_swap_low']); if (!is_numericint($value) || ($value > 100)) { $input_errors[] = "You must enter a valid value for 'Low-water-mark'."; } unset($value); } if (!empty($post['cache_swap_high'])) { $value = trim($post['cache_swap_high']); if (!is_numericint($value) || ($value > 100)) { $input_errors[] = "You must enter a valid value for 'High-water-mark'."; } unset($value); } if ($post['donotcache'] != "") { foreach (split("\n", $post['donotcache']) as $host) { $host = trim($host); if (!is_ipaddr($host) && !is_domain($host)) { $input_errors[] = "The host '$host' is not a valid IP or hostname."; } } unset($host); } if (substr($post['harddisk_cache_location'], -1, 1) == '/') { $input_errors[] = 'Log location must not end with a / character.'; } if ($post['harddisk_cache_location']{0} != '/') { $input_errors[] = 'Log location must start with a / character.'; } if (strlen($post['harddisk_cache_location']) <= 3) { $input_errors[] = "Configured log location directory is not valid."; } } /* Proxy Server: Access Control input validation */ function squid_validate_nac($post, &$input_errors) { $allowed_subnets = explode("\n", $post['allowed_subnets']); foreach ($allowed_subnets as $subnet) { $subnet = trim($subnet); if (!empty($subnet) && !is_subnet($subnet) && $subnet != "all") { $input_errors[] = "'Allowed Subnets' must be a valid CIDR range or 'all'. The subnet '$subnet' is not valid."; } } unset($allowed_subnets); foreach (array('unrestricted_hosts', 'banned_hosts') as $hosts) { if (preg_match_all("@([0-9.]+)(/[0-9.]+|)@", $_POST[$hosts], $matches)) { for ($x = 0; $x < count($matches[1]); $x++) { if ($matches[2][$x] == "") { if (!is_ipaddr($matches[1][$x])) { $input_errors[] = "'{$matches[1][$x]}' is not a valid IP address."; } } else { if (!is_subnet($matches[0][$x])) { $input_errors[] = "The subnet '{$matches[0][$x]}' is not a valid CIDR range."; } } } } } foreach (array('unrestricted_macs', 'banned_macs') as $macs) { foreach (explode("\n", $post[$macs]) as $mac) { $mac = trim($mac); if (!empty($mac) && !is_macaddr($mac)) { $input_errors[] = "'$mac' is not a valid MAC address."; } } unset($mac); } foreach (explode(",", $post['timelist']) as $time) { $time = trim($time); if (!empty($time) && !squid_is_timerange($time)) { $input_errors[] = "The time range '$time' is not a valid time range."; } } unset($time); if (!empty($post['ext_cachemanager'])) { $extmgr = explode(";", ($post['ext_cachemanager'])); foreach ($extmgr as $mgr) { if (!is_ipaddr($mgr)) { $input_errors[] = "You must enter a valid IP address in the 'External Cache Manager' field'."; } } } unset($extmgr); } /* Proxy server: Traffic Management input validation */ function squid_validate_traffic($post, &$input_errors) { $num_fields = array( 'max_download_size' => 'Maximum download size', 'max_upload_size' => 'Maximum upload size', 'perhost_throttling' => 'Per-host bandwidth throttling', 'overall_throttling' => 'Overall bandwidth throttling', ); foreach ($num_fields as $field => $name) { $value = trim($post[$field]); if (!is_numericint($value)) { $input_errors[] = "The '$name' field must contain a positive integer."; } } unset($num_fields); if (!empty($post['quick_abort_min'])) { $value = trim($post['quick_abort_min']); if ((!is_numericint($value)) && ($value != "-1")) { $input_errors[] = "'Finish when remaining KB' must contain a positive integer or '-1'."; } } if (!empty($post['quick_abort_max'])) { $value = trim($post['quick_abort_max']); if (!is_numericint($value)) { $input_errors[] = "'Abort when remaining KB' must contain a positive integer."; } } if (!empty($post['quick_abort_pct'])) { $value = trim($post['quick_abort_pct']); if (!is_numericint($value) || ($value > 100)) { $input_errors[] = "'Finish when remaining %' must contain valid percentage (1-100)."; } } if ($post['throttle_specific'] == "on") { $others = trim($post['throttle_others']); if ($post['throttle_binaries'] == "" && $post['throttle_cdimages'] == "" && $post['throttle_multimedia'] == "" && $others == "") { $input_errors[] = "'Throttle Only Specific Extensions' enabled but no extensions specified. Select some options under 'Squid Transfer Extension Settings' or disable this option."; } unset($others); } } /* Proxy Server: Authentication input validation */ function squid_validate_auth($post, &$input_errors) { $num_fields = array( array('auth_processes', 'Authentication processes', 1), array('auth_ttl', 'Authentication TTL', 0), ); foreach ($num_fields as $field) { $value = trim($post[$field[0]]); if (!empty($value) && (!is_numeric($value) || ($value < $field[2]))) { $input_errors[] = "The '{$field[1]}' field must contain a valid number greater than {$field[2]}"; } } unset($num_fields); $auth_method = $post['auth_method']; if (($auth_method != 'none') && ($auth_method != 'local') && ($auth_method != 'cp')) { $server = trim($post['auth_server']); if (empty($server)) { $input_errors[] = "'Authentication server' is required."; } elseif (!is_ipaddr($server) && !is_domain($server)) { $input_errors[] = "'Authentication server' must contain a valid IP address or domain name."; } $port = trim($post['auth_server_port']); if (!empty($port) && !is_port($port)) { $input_errors[] = "'Authentication server port' must contain a valid port number."; } switch ($auth_method) { case 'ldap': $user = trim($post['ldap_user']); if (empty($user)) { $input_errors[] = "'LDAP server user DN' is required."; } elseif (!$user) { $input_errors[] = "'LDAP server user DN' must be a valid DN."; } break; case 'radius': $secret = trim($post['radius_secret']); if (empty($secret)) { $input_errors[] = "'RADIUS secret' is required."; } break; case 'msnt': foreach (explode(",", trim($post['msnt_secondary'])) as $server) { if (!empty($server) && !is_ipaddr($server) && !is_domain($server)) { $input_errors[] = "The host '$server' is not a valid IP address or domain name"; } } break; } $no_auth = explode("\n", $post['no_auth_hosts']); foreach ($no_auth as $host) { $host = trim($host); if (!empty($host) && !is_subnet($host)) { $input_errors[] = "The host '$host' is not a valid CIDR range"; } } } unset($auth_method, $port, $server, $secret, $user); } /* Proxy Server: General Settings configuration handler */ function squid_resync_general() { global $g, $config, $valid_acls; if (is_array($config['installedpackages']['squid'])) { $settings = $config['installedpackages']['squid']['config'][0]; } else { $settings = array(); } $conf = "# This file is automatically generated by pfSense\n"; $conf .= "# Do not edit manually !\n\n"; // Check ssl interception if (($settings['ssl_proxy'] == 'on')) { squid_check_ca_hashes(); $srv_cert = lookup_ca($settings["dca"]); if ($srv_cert != false) { if (base64_decode($srv_cert['prv'])) { // check if ssl_db was initilized by Squid if (!file_exists(SQUID_SSL_DB . "/serial")) { if (is_dir(SQUID_SSL_DB)) { mwexec("/bin/rm -rf " . SQUID_SSL_DB); } mwexec(SQUID_LOCALBASE . "/libexec/squid/ssl_crtd -c -s " . SQUID_SSL_DB); } // force squid user permission on /var/squid/lib/ssl_db/ squid_chown_recursive(SQUID_SSL_DB, SQUID_UID, SQUID_GID); // cert, key, version, cipher, options, clientca, cafile, capath, crlfile, dhparams, sslflags, sslcontext $crt_pk = SQUID_CONFBASE . "/serverkey.pem"; $crt_capath = SQUID_LOCALBASE . "/share/certs/"; /* XXX: Bug #4453 * http://wiki.squid-cache.org/ConfigExamples/Intercept/SslBumpExplicit#Modern_DH.2Fciphers_usage */ //$sslproxy_cipher = "EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS"; $sslproxy_cipher = "EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:HIGH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS"; $sslproxy_dhparams = "/etc/dh-parameters.2048"; $sslproxy_options = "NO_SSLv2,NO_SSLv3,SINGLE_DH_USE"; file_put_contents($crt_pk, base64_decode($srv_cert['prv']) . base64_decode($srv_cert['crt'])); $sslcrtd_children = ($settings['sslcrtd_children'] ? $settings['sslcrtd_children'] : 5); $ssl_interception .= "ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=" . ($sslcrtd_children*2) . "MB cert={$crt_pk} capath={$crt_capath} cipher={$sslproxy_cipher} dhparams={$sslproxy_dhparams} options={$sslproxy_options}\n"; $interception_checks = "sslcrtd_program " . SQUID_LOCALBASE . "/libexec/squid/ssl_crtd -s " . SQUID_SSL_DB . " -M 4MB -b 2048\n"; $interception_checks .= "sslcrtd_children {$sslcrtd_children}\n"; $interception_checks .= "sslproxy_capath {$crt_capath}\n"; $interception_checks .= "sslproxy_options {$sslproxy_options}\n"; $interception_checks .= "sslproxy_cipher {$sslproxy_cipher}\n"; if (preg_match("/sslproxy_cert_error/", $settings["interception_checks"])) { $interception_checks .= "sslproxy_cert_error allow all\n"; } if (preg_match("/sslproxy_flags/", $settings["interception_checks"])) { $interception_checks .= "sslproxy_flags DONT_VERIFY_PEER\n"; } if ($settings["interception_adapt"] != "") { foreach (explode(",", $settings["interception_adapt"]) as $adapt) { $interception_checks .= "sslproxy_cert_adapt {$adapt} all\n"; } } } } } $port = ($settings['proxy_port'] ? $settings['proxy_port'] : 3128); $ssl_port = ($settings['ssl_proxy_port'] ? $settings['ssl_proxy_port'] : 3129); // Read assigned interfaces $real_ifaces = array(); if ($settings['active_interface']) { $proxy_ifaces = explode(",", $settings['active_interface']); } else { $proxy_ifaces = array(); } if ($settings['transparent_proxy'] == "on") { $transparent_ifaces = explode(",", $settings['transparent_active_interface']); foreach ($transparent_ifaces as $t_iface) { $t_iface_ip = squid_get_real_interface_address($t_iface); if ($t_iface_ip[0]) { $real_ifaces[] = $t_iface_ip; } } } else { $transparent_ifaces = array(); } if ($settings['ssl_proxy'] == "on") { $ssl_ifaces = explode(",", $settings['ssl_active_interface']); foreach ($ssl_ifaces as $s_iface) { $s_iface_ip = squid_get_real_interface_address($s_iface); if ($s_iface_ip[0]) { $real_ifaces[] = $s_iface_ip; } } } else { $ssl_ifaces = array(); } // check all proxy interfaces selected foreach ($proxy_ifaces as $iface) { $iface_ip = squid_get_real_interface_address($iface); if ($iface_ip[0]) { // do not add loopback twice when transparent proxy is enabled if ($iface_ip[0] == "127.0.0.1" && $settings['transparent_proxy'] == "on") { continue; } else { $real_ifaces[] = $iface_ip; if (in_array($iface, $ssl_ifaces)) { $conf .= "http_port {$iface_ip[0]}:{$port} {$ssl_interception}\n"; } else { $conf .= "http_port {$iface_ip[0]}:{$port}\n"; } } } } if (($settings['transparent_proxy'] == 'on')) { if ($settings['ssl_proxy'] == "on" && count($ssl_ifaces) > 0) { $conf .= "http_port 127.0.0.1:{$port} intercept {$ssl_interception}\n"; $conf .= "https_port 127.0.0.1:{$ssl_port} intercept {$ssl_interception}\n"; } else { $conf .= "http_port 127.0.0.1:{$port} intercept\n"; } } $icp_port = ($settings['icp_port'] ? $settings['icp_port'] : 0); $dns_v4_first = ($settings['dns_v4_first'] == "on" ? "on" : "off"); $piddir = "{$g['varrun_path']}/squid"; $pidfile = "{$piddir}/squid.pid"; if (!is_dir($piddir)) { safe_mkdir($piddir, 0755); squid_chown_recursive($piddir, SQUID_UID, 'wheel'); } $language = ($settings['error_language'] ? $settings['error_language'] : 'en'); $icondir = SQUID_CONFBASE . '/icons'; $hostname = ($settings['visible_hostname'] ? $settings['visible_hostname'] : 'localhost'); $email = ($settings['admin_email'] ? $settings['admin_email'] : 'admin@localhost'); $logdir = ($settings['log_dir'] ? $settings['log_dir'] : '/var/squid/logs'); if (!is_dir($logdir)) { log_error("[squid] Creating Squid log dir '{$logdir}' ..."); safe_mkdir($logdir, 0755); squid_chown_recursive($logdir, SQUID_UID, SQUID_GID); } $logdir_cache = $logdir . '/cache.log'; $logdir_access = ($settings['log_enabled'] == 'on' ? $logdir . '/access.log' : '/dev/null'); $pinger_helper = ($settings['disable_pinger']) == 'on' ? 'off' : 'on'; $pinger_program = SQUID_LOCALBASE . "/libexec/squid/pinger"; $squid_uid = SQUID_UID; $squid_gid = SQUID_GID; $conf .= <<< EOD icp_port {$icp_port} dns_v4_first {$dns_v4_first} pid_filename {$pidfile} cache_effective_user {$squid_uid} cache_effective_group {$squid_gid} error_default_language {$language} icon_directory {$icondir} visible_hostname {$hostname} cache_mgr {$email} access_log {$logdir_access} cache_log {$logdir_cache} cache_store_log none netdb_filename {$logdir}/netdb.state pinger_enable {$pinger_helper} pinger_program {$pinger_program} {$interception_checks} EOD; // Per squid docs, setting logfile_rotate to 0 is safe and causes a simple close/reopen. $rotate = empty($settings['log_rotate']) ? 0 : $settings['log_rotate']; $conf .= "logfile_rotate {$rotate}\n"; $conf .= "debug_options rotate={$rotate}\n"; squid_install_cron(true); $conf .= <<< EOD shutdown_lifetime 3 seconds EOD; if ($settings['allow_interface'] == 'on') { $src = ''; foreach ($real_ifaces as $iface) { list($ip, $mask) = $iface; $ip = long2ip(ip2long($ip) & ip2long($mask)); $mask = 32 - log((ip2long($mask) ^ ip2long('255.255.255.255')) +1, 2); if (!preg_match("@$ip/$mask@", $src)) { // XXX: Do not add invalid subnets (Bug #4331, Bug #4526) if (is_subnet("{$ip}/{$mask}")) { $src .= " $ip/$mask"; } else { log_error("[squid] 'Allow Users on Interface' ACL skipped for '{$ip}/{$mask}' since it is not a valid subnet."); } } } if (!empty($src)) { $conf .= "# Allow local network(s) on interface(s)\n"; $conf .= "acl localnet src $src\n"; $valid_acls[] = 'localnet'; } } if ($settings['xforward_mode']) { $conf .= "forwarded_for {$settings['xforward_mode']}\n"; } else { // only used for first run $conf .= "forwarded_for on\n"; } if ($settings['disable_via']) { $conf .= "via off\n"; } if ($settings['disable_squidversion']) { $conf .= "httpd_suppress_version_string on\n"; } if (!empty($settings['uri_whitespace'])) { $conf .= "uri_whitespace {$settings['uri_whitespace']}\n"; } else { // only used for first run $conf .= "uri_whitespace strip\n"; } if (!empty($settings['dns_nameservers'])) { $altdns = explode(";", ($settings['dns_nameservers'])); $conf .= "dns_nameservers "; foreach ($altdns as $dnssrv) { $conf .= $dnssrv . " "; } } return $conf; } /* Proxy Server: Cache Management configuration handler */ function squid_resync_cache() { global $config, $g; if (is_array($config['installedpackages']['squidcache'])) { $settings = $config['installedpackages']['squidcache']['config'][0]; } else { $settings = array(); } // apply cache settings $cachedir = ($settings['harddisk_cache_location'] ? $settings['harddisk_cache_location'] : '/var/squid/cache'); $disk_cache_size = ($settings['harddisk_cache_size'] ? $settings['harddisk_cache_size'] : 100); $level1 = ($settings['level1_subdirs'] ? $settings['level1_subdirs'] : 16); $memory_cache_size = ($settings['memory_cache_size'] ? $settings['memory_cache_size'] : 64); $max_objsize = ($settings['maximum_object_size'] ? $settings['maximum_object_size'] . " MB" : "4 MB"); $min_objsize = ($settings['minimum_object_size'] ? $settings['minimum_object_size'] : 0); $max_objsize_in_mem = ($settings['maximum_objsize_in_mem'] ? $settings['maximum_objsize_in_mem'] : 256); $cache_policy = ($settings['cache_replacement_policy'] ? $settings['cache_replacement_policy'] : 'heap LFUDA'); $memory_policy = ($settings['memory_replacement_policy'] ? $settings['memory_replacement_policy'] : 'heap GDSF'); $offline_mode = ($settings['enable_offline'] == 'on' ? 'on' : 'off'); $conf = ''; if (!isset($settings['harddisk_cache_system'])) { if ($g['platform'] == "nanobsd") { $disk_cache_system = 'null'; } elseif (!is_array($config['installedpackages']['squidcache']['config'])) { log_error("[squid] 'Local Cache' not configured, disk cache will be disabled."); log_error("[squid] Please, configure and save 'Local Cache' settings before enabling Squid proxy."); } else { $disk_cache_system = 'ufs'; } } else { $disk_cache_system = $settings['harddisk_cache_system']; } // 'null' storage type dropped. In-memory cache is always present. Remove all cache_dir options to prevent on-disk caching. if ($disk_cache_system != "null") { $disk_cache_opts = "cache_dir {$disk_cache_system} {$cachedir} {$disk_cache_size} {$level1} 256"; } // check dynamic content if (empty($settings['cache_dynamic_content'])) { $conf .= 'acl dynamic urlpath_regex cgi-bin \?' . "\n"; $conf .= "cache deny dynamic\n"; } else { if ($settings['custom_refresh_patterns'] != "") { $conf .= sq_text_area_decode($settings['custom_refresh_patterns']) . "\n"; } } $refresh_conf = <<< EOC # Add any of your own refresh_pattern entries above these. 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 EOC; $conf .= <<< EOD cache_mem {$memory_cache_size} MB maximum_object_size_in_memory {$max_objsize_in_mem} KB memory_replacement_policy {$memory_policy} cache_replacement_policy {$cache_policy} minimum_object_size {$min_objsize} KB maximum_object_size {$max_objsize} {$disk_cache_opts} offline_mode {$offline_mode} EOD; if (!empty($settings['cache_swap_low'])) { $conf .= "cache_swap_low {$settings['cache_swap_low']}\n"; } if (!empty($settings['cache_swap_high'])) { $conf .= "cache_swap_high {$settings['cache_swap_high']}\n"; } $donotcache = sq_text_area_decode($settings['donotcache']); if (!empty($donotcache)) { file_put_contents(SQUID_ACLDIR . '/donotcache.acl', $donotcache); $conf .= 'acl donotcache dstdomain "' . SQUID_ACLDIR . "/donotcache.acl\"\n"; $conf .= "cache deny donotcache\n"; } elseif (file_exists(SQUID_ACLDIR . '/donotcache.acl')) { unlink(SQUID_ACLDIR . '/donotcache.acl'); } $conf .= "cache allow all\n"; return $conf.$refresh_conf; } /* Proxy Server: Remote Proxy Settings configuration handler */ function squid_resync_upstream() { global $config; if (!is_array($config['installedpackages']['squidremote']['config'])) { $config['installedpackages']['squidremote']['config'] = array(); } $conf = "\n#Remote proxies\n"; foreach ($config['installedpackages']['squidremote']['config'] as $settings) { if ($settings['enable'] == 'on') { $conf .= "cache_peer {$settings['proxyaddr']} {$settings['hierarchy']} {$settings['proxyport']} "; if ($settings['icpport'] == '7') { $conf .= "{$settings['icpport']} {$settings['icpoptions']} {$settings['peermethod']} {$settings['allowmiss']} "; } else { $conf .= "{$settings['icpport']} "; } // auth settings if (!empty($settings['username']) && !empty($settings['password'])) { $conf .= " login={$settings['username']}:{$settings['password']}"; } else { $conf .= "{$settings['authoption']} "; } // other options settings if (!empty($settings['weight'])) { $conf .= "weight={$settings['weight']} "; } if (!empty($settings['basetime'])) { $conf .= "basetime={$settings['basetime']} "; } if (!empty($settings['ttl'])) { $conf .= "ttl={$settings['ttl']} "; } if (!empty($settings['nodelay'])) { $conf .= "no-delay"; } } $conf .= "\n"; } return $conf; } /* Proxy Server: Access Control configuration handler */ function squid_resync_nac() { global $config, $valid_acls; if (is_array($config['installedpackages']['squidnac'])) { $settings = $config['installedpackages']['squidnac']['config'][0]; } else { $settings = array(); } if (is_array($config['installedpackages']['squid'])) { $squidsettings = $config['installedpackages']['squid']['config'][0]; } else { $squidsettings = array(); } $webgui_port = $config['system']['webgui']['port']; $addtl_ports = $settings['addtl_ports']; $addtl_sslports = $settings['addtl_sslports']; // do not add (default) proxy ports when using Squid as reverse proxy only if (!empty($squidsettings['active_interface'])) { $port = $squidsettings['proxy_port'] ? $squidsettings['proxy_port'] : 3128; $ssl_port = $squidsettings['ssl_proxy_port'] ? $squidsettings['ssl_proxy_port'] : 3129; } $conf = <<< EOD # Setup some default acls # From 3.2 further configuration cleanups have been done to make things easier and safer. The manager, localhost, and to_localhost ACL definitions are now built-in. # acl localhost src 127.0.0.1/32 acl allsrc src all acl safeports port 21 70 80 210 280 443 488 563 591 631 777 901 {$webgui_port} {$port} {$ssl_port} 1025-65535 {$addtl_ports} acl sslports port 443 563 {$webgui_port} {$addtl_sslports} # From 3.2 further configuration cleanups have been done to make things easier and safer. The manager, localhost, and to_localhost ACL definitions are now built-in. #acl manager proto cache_object acl purge method PURGE acl connect method CONNECT # Define protocols used for redirects acl HTTP proto HTTP acl HTTPS proto HTTPS EOD; $allowed_subnets = preg_replace("/\s+/"," ", sq_text_area_decode($settings['allowed_subnets'])); if (!empty($allowed_subnets)) { $conf .= "acl allowed_subnets src $allowed_subnets\n"; $valid_acls[] = 'allowed_subnets'; } $options = array( 'unrestricted_hosts' => 'src', 'banned_hosts' => 'src', 'whitelist' => 'dstdom_regex -i', 'blacklist' => 'dstdom_regex -i', 'block_user_agent' => 'browser -i', 'block_reply_mime_type' => 'rep_mime_type -i', ); foreach ($options as $option => $directive) { $contents = sq_text_area_decode($settings[$option]); if (!empty($contents)) { file_put_contents(SQUID_ACLDIR . "/$option.acl", $contents); $conf .= "acl $option $directive \"" . SQUID_ACLDIR . "/$option.acl\"\n"; $valid_acls[] = $option; } elseif (file_exists(SQUID_ACLDIR . "/$option.acl")) { unlink(SQUID_ACLDIR . "/$option.acl"); } } $conf .= <<< EOD http_access allow manager localhost EOD; if (is_array($config['installedpackages']['squidcache'])) { $settings_ch = $config['installedpackages']['squidcache']['config'][0]; if (!empty($settings_ch['ext_cachemanager'])) { $extmgr = explode(";", ($settings_ch['ext_cachemanager'])); $conf .= "\n# Allow external cache managers\n"; foreach ($extmgr as $mgr) { $conf .= "acl ext_manager src {$mgr}\n"; } $conf .= "http_access allow manager ext_manager\n"; } } $conf .= <<< EOD http_access deny manager http_access allow purge localhost http_access deny purge http_access deny !safeports http_access deny CONNECT !sslports # Always allow localhost connections # From 3.2 further configuration cleanups have been done to make things easier and safer. # The manager, localhost, and to_localhost ACL definitions are now built-in. # http_access allow localhost EOD; return $conf; } /* Proxy server: Traffic Management configuration handler */ function squid_resync_traffic() { global $config, $valid_acls; if (!is_array($valid_acls)) { return; } if (is_array($config['installedpackages']['squidtraffic'])) { $settings = $config['installedpackages']['squidtraffic']['config'][0]; } else { $settings = array(); } $conf = ''; if (!empty($settings['quick_abort_min']) || ($settings['quick_abort_min']) == "0") { $conf .= "quick_abort_min {$settings['quick_abort_min']} KB\n"; } if (!empty($settings['quick_abort_max']) || ($settings['quick_abort_max']) == "0") { $conf .= "quick_abort_max {$settings['quick_abort_max']} KB\n"; } if (!empty($settings['quick_abort_pct'])) { $conf .= "quick_abort_pct {$settings['quick_abort_pct']}\n"; } $up_limit = ($settings['max_upload_size'] ? $settings['max_upload_size'] : 0); $down_limit = ($settings['max_download_size'] ? $settings['max_download_size'] : 0); $conf .= "request_body_max_size $up_limit KB\n"; if ($down_limit != 0) { $conf .= 'reply_body_max_size ' . $down_limit . " KB allsrc \n"; } // Only apply throttling past 10MB // XXX: Should this really be hardcoded? $threshold = 10 * 1024 * 1024; $overall = $settings['overall_throttling']; if (!isset($overall) || ($overall == 0)) { $overall = -1; } else { $overall *= 1024; } $perhost = $settings['perhost_throttling']; if (!isset($perhost) || ($perhost == 0)) { $perhost = -1; } else { $perhost *= 1024; } $conf .= <<< EOD delay_pools 1 delay_class 1 2 delay_parameters 1 $overall/$overall $perhost/$perhost delay_initial_bucket_level 100 EOD; if (!empty($settings['unrestricted_hosts'])) { foreach (array('unrestricted_hosts') as $item) { if (in_array($item, $valid_acls)) { $conf .= "# Do not throttle unrestricted hosts\n"; $conf .= "delay_access 1 deny $item\n"; } } } if ($settings['throttle_specific'] == 'on') { $exts = array(); $binaries = 'bin,cab,sea,ar,arj,tar,tgz,gz,tbz,bz2,zip,7z,exe,com'; $cdimages = 'iso,bin,mds,nrg,gho,bwt,b5t,pqi'; $multimedia = 'aiff?,asf,avi,divx,mov,mp3,mp4,wmv,mpe?g,qt,ra?m'; foreach (array('throttle_binaries' => $binaries, 'throttle_cdimages' => $cdimages, 'throttle_multimedia' => $multimedia) as $field => $set) { if ($settings[$field] == 'on') { $exts = array_merge($exts, explode(",", $set)); } } foreach (explode(",", $settings['throttle_others']) as $ext) { if (!empty($ext)) { $exts[] = $ext; } } $contents = ''; foreach ($exts as $ext) { $contents .= "\.$ext\$\n"; } file_put_contents(SQUID_ACLDIR . '/throttle_exts.acl', $contents); $conf .= "# Throttle extensions matched in the url\n"; $conf .= "acl throttle_exts urlpath_regex -i \"" . SQUID_ACLDIR . "/throttle_exts.acl\"\n"; $conf .= "delay_access 1 allow throttle_exts\n"; $conf .= "delay_access 1 deny allsrc\n"; } else { unlink_if_exists(SQUID_ACLDIR . '/throttle_exts.acl'); $conf .= "delay_access 1 allow allsrc\n"; } return $conf; } /* Proxy Server: Authentication configuration handler */ function squid_resync_auth() { global $config, $valid_acls; $write_config = 0; if (!is_array($config['installedpackages']['squidauth']['config'])) { $config['installedpackages']['squidauth']['config'][] = array('auth_method'=> "none"); $write_config++; } $settings = $config['installedpackages']['squidauth']['config'][0]; if (is_array($config['installedpackages']['squidnac']['config'])) { $settingsnac = $config['installedpackages']['squidnac']['config'][0]; } else { $settingsnac = array(); } if (is_array($config['installedpackages']['squid']['config'])) { $settingsconfig = $config['installedpackages']['squid']['config'][0]; } else { $settingsconfig = array(); } if ($write_config > 0) { write_config(); } $conf = ''; // SSL interception acl options part 1 if ($settingsconfig['ssl_proxy'] == "on" && ! empty($settingsnac['whitelist'])) { $conf .= "always_direct allow whitelist\n"; $conf .= "ssl_bump none whitelist\n"; } // Package integration if (!empty($settingsconfig['custom_options'])) { $co_preg[0] = '/;/'; $co_rep[0] = "\n"; $co_preg[1] = "/redirect_program/"; $co_rep[1] = "url_rewrite_program"; $co_preg[2] = "/redirector_bypass/"; $co_rep[2] = "url_rewrite_bypass"; $conf .= "# Package Integration\n" . preg_replace($co_preg, $co_rep, $settingsconfig['custom_options']) . "\n\n"; } // Custom User Options before authentication acls $conf .= "# Custom options before auth\n" . sq_text_area_decode($settingsconfig['custom_options_squid3']) . "\n\n"; // Deny the banned guys before allowing the good guys if (!empty($settingsnac['banned_hosts'])) { if (squid_is_valid_acl('banned_hosts')) { $conf .= "# These hosts are banned\n"; $conf .= "http_access deny banned_hosts\n"; } } if (!empty($settingsnac['banned_macs'])) { if (squid_is_valid_acl('banned_macs')) { $conf .= "# These macs are banned\n"; $conf .= "http_access deny banned_macs\n"; } } // Unrestricted hosts take precedence over blacklist if (!empty($settingsnac['unrestricted_hosts'])) { if (squid_is_valid_acl('unrestricted_hosts') && $settings['unrestricted_auth'] != "on") { $conf .= "# These hosts do not have any restrictions\n"; $conf .= "http_access allow unrestricted_hosts\n"; } } if (!empty($settingsnac['unrestricted_macs'])) { if (squid_is_valid_acl('unrestricted_macs')) { $conf .= "# These hosts do not have any restrictions\n"; $conf .= "http_access allow unrestricted_macs\n"; } } // Whitelist and blacklist also take precedence over other allow rules if (!empty($settingsnac['whitelist'])) { if (squid_is_valid_acl('whitelist')) { $conf .= "# Always allow access to whitelist domains\n"; $conf .= "http_access allow whitelist\n"; } } if (!empty($settingsnac['blacklist'])) { if (squid_is_valid_acl('blacklist')) { $conf .= "# Block access to blacklist domains\n"; $conf .= "http_access deny blacklist\n"; } } if (!empty($settingsnac['block_user_agent'])) { if (squid_is_valid_acl('block_user_agent')) { $conf .= "# Block access with user agents and browsers\n"; $conf .= "http_access deny block_user_agent\n"; } } if (!empty($settingsnac['block_reply_mime_type'])) { if (squid_is_valid_acl('block_reply_mime_type')) { $conf .= "# Block access with mime type in the reply\n"; $conf .= "http_reply_access deny block_reply_mime_type\n"; } } // Include squidguard denied acl log in squid if ($settingsconfig['log_sqd']) { $conf .= "acl sglog url_regex -i sgr=ACCESSDENIED\n"; } $transparent_proxy = ($settingsconfig['transparent_proxy'] == 'on'); if ($transparent_proxy) { if (preg_match ("/(none|cp)/", $settings['auth_method'])) { $auth_method = $settings['auth_method']; } else { $auth_method = "none"; } } else { $auth_method = $settings['auth_method']; } // Allow the remaining ACLs if no authentication is set if ($auth_method == 'none' || $auth_method == 'cp') { // Include squidguard denied acl log in squid if ($settingsconfig['log_sqd']) { $conf .= "http_access deny sglog\n"; } } if ($auth_method == 'none') { // SSL interception acl options part 2 without authentication if ($settingsconfig['ssl_proxy'] == "on") { $conf .= "always_direct allow all\n"; $conf .= "ssl_bump server-first all\n"; } $conf .= "# Setup allowed ACLs\n"; $allowed = array('allowed_subnets'); if ($settingsconfig['allow_interface'] == 'on' && !empty($settingsconfig['active_interface'])) { $conf .= "# Allow local network(s) on interface(s)\n"; $allowed[] = "localnet"; } $allowed = array_filter($allowed, 'squid_is_valid_acl'); foreach ($allowed as $acl) { $conf .= "http_access allow $acl\n"; } } else { $noauth = implode(' ', explode("\n", sq_text_area_decode($settings['no_auth_hosts']))); if (!empty($noauth)) { $conf .= "acl noauth src $noauth\n"; $valid_acls[] = 'noauth'; } // Set up the external authentication programs $auth_ttl = ($settings['auth_ttl'] ? $settings['auth_ttl'] : 5); $processes = ($settings['auth_processes'] ? $settings['auth_processes'] : 5); $prompt = ($settings['auth_prompt'] ? $settings['auth_prompt'] : 'Please enter your credentials to access the proxy'); switch ($auth_method) { case 'local': $conf .= 'auth_param basic program ' . SQUID_LOCALBASE . '/libexec/squid/basic_ncsa_auth ' . SQUID_PASSWD . "\n"; break; case 'ldap': $port = (isset($settings['auth_server_port']) ? ":{$settings['auth_server_port']}" : ''); $password = (isset($settings['ldap_pass']) ? "-w {$settings['ldap_pass']}" : ''); $conf .= "auth_param basic program " . SQUID_LOCALBASE . "/libexec/squid/basic_ldap_auth -v {$settings['ldap_version']} -b {$settings['ldap_basedomain']} -D {$settings['ldap_user']} $password -f \"{$settings['ldap_filter']}\" -u {$settings['ldap_userattribute']} -P {$settings['auth_server']}$port\n"; break; case 'radius': $port = (isset($settings['auth_server_port']) ? "-p {$settings['auth_server_port']}" : ''); $conf .= "auth_param basic program ". SQUID_LOCALBASE . "/libexec/squid/basic_radius_auth -w {$settings['radius_secret']} -h {$settings['auth_server']} $port\n"; break; case 'cp': $conf .= "external_acl_type check_cp children-startup={$processes} ttl={$auth_ttl} %SRC " . SQUID_BASE . "/bin/check_ip.php\n"; $conf .= "acl password external check_cp\n"; break; case 'msnt': $conf .= "auth_param basic program " . SQUID_LOCALBASE . "/libexec/squid/basic_msnt_auth\n"; squid_resync_msnt(); break; } if ($auth_method != 'cp') { $conf .= <<< EOD auth_param basic children $processes auth_param basic realm $prompt auth_param basic credentialsttl $auth_ttl minutes acl password proxy_auth REQUIRED EOD; } // Custom User Options after authentication definition $conf .= "# Custom options after auth\n" . sq_text_area_decode($settingsconfig['custom_options2_squid3']) . "\n\n"; // SSL interception acl options part 2 if ($settingsconfig['ssl_proxy'] == "on") { $conf .= "always_direct allow all\n"; $conf .= "ssl_bump server-first all\n"; } // Onto the ACLs $password = array('localnet', 'allowed_subnets'); $passwordless = array('unrestricted_hosts'); if ($settings['unrestricted_auth'] == 'on') { // Even the unrestricted hosts should authenticate $password = array_merge($password, $passwordless); $passwordless = array(); } $passwordless[] = 'noauth'; $password = array_filter($password, 'squid_is_valid_acl'); $passwordless = array_filter($passwordless, 'squid_is_valid_acl'); // Allow the ACLs that don't need to authenticate foreach ($passwordless as $acl) { $conf .= "http_access allow $acl\n"; } // Include squidguard denied acl log in squid if ($settingsconfig['log_sqd']) { $conf .= "http_access deny password sglog\n"; } // Allow the other ACLs as long as they authenticate foreach ($password as $acl) { $conf .= "http_access allow password $acl\n"; } } $conf .= "# Default block all to be sure\n"; $conf .= "http_access deny allsrc\n"; return $conf; } /* Proxy server: Local users configuration handler */ function squid_resync_users() { global $config; $users = $config['installedpackages']['squidusers']['config']; $contents = ''; if (is_array($users)) { foreach ($users as $user) { $contents .= $user['username'] . ':' . crypt($user['password'], base64_encode($user['password'])) . "\n"; } } file_put_contents(SQUID_PASSWD, $contents); chown(SQUID_PASSWD, SQUID_UID); chmod(SQUID_PASSWD, 0600); } /* Proxy server: NT Domain configuration handler */ function squid_resync_msnt() { global $config; if (is_array($config['installedpackages']['squidauth'])) { $settings = $config['installedpackages']['squidauth']['config'][0]; } else { $settings = array(); } $pdcserver = $settings['auth_server']; $bdcserver = str_replace(',', ' ', $settings['msnt_secondary']); $ntdomain = $settings['auth_ntdomain']; file_put_contents(SQUID_CONFBASE . "/msntauth.conf", "server {$pdcserver} {$bdcserver} {$ntdomain}"); chown(SQUID_CONFBASE . "/msntauth.conf", SQUID_UID); chmod(SQUID_CONFBASE . "/msntauth.conf", 0600); } /* Wrapper function to sync whole Squid configuration */ function squid_resync($via_rpc = "no") { global $config; // detect boot process if (is_array($_POST)) { if (!platform_booting()) { unset($boot_process); } else { $boot_process = "on"; } } log_error("[squid] - squid_resync function call pr:" . is_process_running('squid') . " bp:" . isset($boot_process) . " rpc:" . $via_rpc); if (is_process_running('squid') && isset($boot_process) && $via_rpc == "no") { return; } conf_mount_rw(); foreach (array(SQUID_CONFBASE, SQUID_ACLDIR, SQUID_SSL_DB) as $dir) { safe_mkdir($dir, 0755); squid_chown_recursive($dir, SQUID_UID, SQUID_GID); } $conf = squid_resync_general() . "\n"; $conf .= squid_resync_cache() . "\n"; $conf .= squid_resync_upstream() . "\n"; $conf .= squid_resync_nac() . "\n"; $conf .= squid_resync_traffic() . "\n"; $conf .= squid_resync_reverse() . "\n"; $conf .= squid_resync_auth() . "\n"; $conf .= squid_resync_antivirus(); squid_resync_users(); squid_write_rcfile(); if (!isset($boot_process) || $via_rpc == "yes") { squid_sync_on_changes(); } // write config file file_put_contents(SQUID_CONFFILE, $conf); /* make sure pinger is executable and suid root */ // XXX: Bug #5114 if (file_exists(SQUID_LOCALBASE . "/libexec/squid/pinger")) { chgrp(SQUID_LOCALBASE . "/libexec/squid/pinger", SQUID_GID); } // check cache dir and create if necessary squid_dash_z(); // restart Squid if enabled and reconfigure filter squid_restart_services(); filter_configure(); conf_mount_ro(); } /* * Squid firewall rules configuration */ function squid_generate_rules($type) { global $config, $pfs_version; $squid_conf = $config['installedpackages']['squid']['config'][0]; //check captive portal option $cp_file = '/etc/inc/captiveportal.inc'; $port = ($settings['proxy_port'] ? $settings['proxy_port'] : 3128); $cp_inc = file($cp_file); $new_cp_inc = ""; $found_rule = 0; foreach ($cp_inc as $line) { $new_line = $line; //remove applied squid patch if (preg_match('/skipto 65314 ip/', $line)) { $found_rule++; $new_line = ""; } if (preg_match('/255.255.255.255/', $line) && $squid_conf['patch_cp']) { $found_rule++; $new_line .= "\t" . '$cprules .= "add {$rulenum} skipto 65314 ip from any to {$ips} ' . $port . ' in\n";' . "\n"; $new_line .= "\t" . '$cprules .= "add {$rulenum} skipto 65314 ip from {$ips} ' . $port . ' to any out\n";' . "\n"; } $new_cp_inc .= $new_line; } if (!file_exists('/root/' . $pfs_version . '.captiveportal.inc.backup')) { copy($cp_file, '/root/' . $pfs_version . '.captiveportal.inc.backup'); } if ($found_rule > 0) { file_put_contents($cp_file, $new_cp_inc, LOCK_EX); } // do not install any firewall rules if Squid is disabled or used as reverse proxy only if (!squid_enabled()) { log_error("[squid] Installed but disabled. Not installing '{$type}' rules."); return; } elseif (empty($squid_conf['active_interface'])) { log_error("[squid] Configured as reverse proxy only. Not installing '{$type}' rules."); return; } // normal squid rule check if (($squid_conf['transparent_proxy'] != 'on') || ($squid_conf['allow_interface'] != 'on')) { return; } if (!is_service_running('squid')) { log_error("[squid] Installed but not started. Not installing '{$type}' rules."); return; } // Read assigned interfaces $proxy_ifaces = explode(",", $squid_conf['active_interface']); $proxy_ifaces = array_map('convert_friendly_interface_to_real_interface_name', $proxy_ifaces); if ($squid_conf['transparent_proxy'] == "on") { $transparent_ifaces = explode(",", $squid_conf['transparent_active_interface']); $transparent_ifaces = array_map('convert_friendly_interface_to_real_interface_name', $transparent_ifaces); } else { $transparent_ifaces = array(); } if ($squid_conf['ssl_proxy'] == "on") { $ssl_ifaces = explode(",", $squid_conf['ssl_active_interface']); $ssl_ifaces = array_map('convert_friendly_interface_to_real_interface_name', $ssl_ifaces); } else { $ssl_ifaces = array(); } $port = ($squid_conf['proxy_port'] ? $squid_conf['proxy_port'] : 3128); $ssl_port = ($squid_conf['ssl_proxy_port'] ? $squid_conf['ssl_proxy_port'] : 3129); $fw_aliases = filter_generate_aliases(); if (strstr($fw_aliases, "pptp =")) { $PPTP_ALIAS = "\$pptp"; } else { $PPTP_ALIAS = "\$PPTP"; } if (strstr($fw_aliases, "PPPoE =")) { $PPPOE_ALIAS = "\$PPPoE"; } else { $PPPOE_ALIAS = "\$pppoe"; } // define ports based on transparent options and ssl filtering $pf_rule_port = ($squid_conf['ssl_proxy'] == "on" ? "{80,443}" : "80"); switch($type) { case 'nat': $rules .= "\n# Setup Squid proxy redirect\n"; if ($squid_conf['private_subnet_proxy_off'] == 'on') { foreach ($transparent_ifaces as $iface) { $pf_transparent_rule_port = (in_array($iface, $ssl_ifaces) ? "{80,443}" : "80"); $rules .= "no rdr on $iface proto tcp from any to { 192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8 } port {$pf_transparent_rule_port}\n"; } /* Handle PPPOE case */ if (($config['pppoe']['mode'] == "server" && $config['pppoe']['localip']) || (function_exists("is_pppoe_server_enabled") && is_pppoe_server_enabled())) { $rules .= "no rdr on $PPPOE_ALIAS proto tcp from any to { 192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8 } port {$pf_rule_port}\n"; } /* Handle PPTP case */ if ($config['pptpd']['mode'] == "server" && $config['pptpd']['localip']) { $rules .= "no rdr on $PPTP_ALIAS proto tcp from any to { 192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8 } port {$pf_rule_port}\n"; } } if (!empty($squid_conf['defined_ip_proxy_off'])) { $defined_ip_proxy_off = explode(";", $squid_conf['defined_ip_proxy_off']); $exempt_ip = ""; foreach ($defined_ip_proxy_off as $ip_proxy_off) { if (!empty($ip_proxy_off)) { $ip_proxy_off = trim($ip_proxy_off); if (is_alias($ip_proxy_off)) { $ip_proxy_off = '$' . $ip_proxy_off; } $exempt_ip .= ", $ip_proxy_off"; } } $exempt_ip = substr($exempt_ip, 2); foreach ($transparent_ifaces as $iface) { $pf_transparent_rule_port = (in_array($iface, $ssl_ifaces) ? "{80,443}" : "80"); $rules .= "no rdr on $iface proto tcp from { $exempt_ip } to any port {$pf_transparent_rule_port}\n"; } /* Handle PPPOE case */ if (($config['pppoe']['mode'] == "server" && $config['pppoe']['localip']) || (function_exists("is_pppoe_server_enabled") && is_pppoe_server_enabled())) { $rules .= "no rdr on $PPPOE_ALIAS proto tcp from { $exempt_ip } to any port {$pf_rule_port}\n"; } /* Handle PPTP case */ if ($config['pptpd']['mode'] == "server" && $config['pptpd']['localip']) { $rules .= "no rdr on $PPTP_ALIAS proto tcp from { $exempt_ip } to any port {$pf_rule_port}\n"; } } if (!empty($squid_conf['defined_ip_proxy_off_dest'])) { $defined_ip_proxy_off_dest = explode(";", $squid_conf['defined_ip_proxy_off_dest']); $exempt_dest = ""; foreach ($defined_ip_proxy_off_dest as $ip_proxy_off_dest) { if (!empty($ip_proxy_off_dest)) { $ip_proxy_off_dest = trim($ip_proxy_off_dest); if (is_alias($ip_proxy_off_dest)) { $ip_proxy_off_dest = '$' . $ip_proxy_off_dest; } $exempt_dest .= ", $ip_proxy_off_dest"; } } $exempt_dest = substr($exempt_dest, 2); foreach ($transparent_ifaces as $iface) { $pf_transparent_rule_port = (in_array($iface, $ssl_ifaces) ? "{80,443}" : "80"); $rules .= "no rdr on $iface proto tcp from any to { $exempt_dest } port {$pf_transparent_rule_port}\n"; } /* Handle PPPOE case */ if (($config['pppoe']['mode'] == "server" && $config['pppoe']['localip']) || (function_exists("is_pppoe_server_enabled") && is_pppoe_server_enabled())) { $rules .= "no rdr on $PPPOE_ALIAS proto tcp from any to { $exempt_dest } port {$pf_rule_port}\n"; } /* Handle PPTP case */ if ($config['pptpd']['mode'] == "server" && $config['pptpd']['localip']) { $rules .= "no rdr on $PPTP_ALIAS proto tcp from any to { $exempt_dest } port {$pf_rule_port}\n"; } } foreach ($transparent_ifaces as $t_iface) { $pf_transparent_rule_port = (in_array($t_iface, $ssl_ifaces) ? "{80,443}" : "80"); $rules .= "rdr on $t_iface proto tcp from any to !($t_iface) port 80 -> 127.0.0.1 port {$port}\n"; if (in_array($t_iface, $ssl_ifaces)) { $rules .= "rdr on $t_iface proto tcp from any to !($t_iface) port 443 -> 127.0.0.1 port {$ssl_port}\n"; } } /* Handle PPPOE case */ if (($config['pppoe']['mode'] == "server" && $config['pppoe']['localip']) || (function_exists("is_pppoe_server_enabled") && is_pppoe_server_enabled())) { $rules .= "rdr on $PPPOE_ALIAS proto tcp from any to !127.0.0.1 port {$pf_rule_port} -> 127.0.0.1 port {$port}\n"; } /* Handle PPTP case */ if ($config['pptpd']['mode'] == "server" && $config['pptpd']['localip']) { $rules .= "rdr on $PPTP_ALIAS proto tcp from any to !127.0.0.1 port {$pf_rule_port} -> 127.0.0.1 port {$port}\n"; } $rules .= "\n"; break; case 'filter': case 'rule': foreach ($transparent_ifaces as $iface) { $pf_transparent_rule_port = (in_array($iface, $ssl_ifaces) ? "{80,443,{$port},{$ssl_port}}" : "{80,{$port}}"); $rules .= "# Setup squid pass rules for proxy\n"; $rules .= "pass in quick on $iface proto tcp from any to !($iface) port {$pf_transparent_rule_port} flags S/SA keep state\n"; // $rules .= "pass in quick on $iface proto tcp from any to !($iface) port {$port} flags S/SA keep state\n"; $rules .= "\n"; } if ($config['pppoe']['mode'] == "server" && $config['pppoe']['localip']) { $rules .= "pass in quick on $PPPOE_ALIAS proto tcp from any to !127.0.0.1 port {$port} flags S/SA keep state\n"; } if ($config['pptpd']['mode'] == "server" && $config['pptpd']['localip']) { $rules .= "pass in quick on $PPTP_ALIAS proto tcp from any to !127.0.0.1 port {$port} flags S/SA keep state\n"; } break; default: break; } return $rules; } /* * Squid XMLRPC sync */ /* XMLRPC sync configuration */ function squid_sync_on_changes() { global $config; if (is_array($config['installedpackages']['squidsync']['config'])) { $squid_sync = $config['installedpackages']['squidsync']['config'][0]; $synconchanges = $squid_sync['synconchanges']; $synctimeout = $squid_sync['synctimeout'] ?: '250'; switch ($synconchanges) { case "manual": if (is_array($squid_sync['row'])) { $rs = $squid_sync['row']; } else { log_error("[squid] XMLRPC sync is enabled but there are no hosts configured as replication targets."); return; } break; case "auto": if (is_array($config['hasync'])) { $system_carp = $config['hasync']; $rs[0]['ipaddress'] = $system_carp['synchronizetoip']; $rs[0]['username'] = $system_carp['username']; $rs[0]['password'] = $system_carp['password']; $rs[0]['syncdestinenable'] = FALSE; // XMLRPC sync is currently only supported over connections using the same protocol and port as this system if ($config['system']['webgui']['protocol'] == "http") { $rs[0]['syncprotocol'] = "http"; $rs[0]['syncport'] = $config['system']['webgui']['port'] ?: '80'; } else { $rs[0]['syncprotocol'] = "https"; $rs[0]['syncport'] = $config['system']['webgui']['port'] ?: '443'; } if ($system_carp['synchronizetoip'] == "") { log_error("[squid] XMLRPC CARP/HA sync is enabled but there are no system backup hosts configured as replication targets."); return; } else { $rs[0]['syncdestinenable'] = TRUE; } } else { log_error("[squid] XMLRPC CARP/HA sync is enabled but there are no system backup hosts configured as replication targets."); return; } break; default: return; break; } if (is_array($rs)) { log_error("[squid] XMLRPC sync is starting."); foreach ($rs as $sh) { // Only sync enabled replication targets if ($sh['syncdestinenable']) { $sync_to_ip = $sh['ipaddress']; $port = $sh['syncport']; $username = $sh['username'] ?: 'admin'; $password = $sh['password']; $protocol = $sh['syncprotocol']; $error = ''; $valid = TRUE; if ($password == "") { $error = "Password parameter is empty. "; $valid = FALSE; } if (!is_ipaddr($sync_to_ip) && !is_hostname($sync_to_ip) && !is_domain($sync_to_ip)) { $error .= "Misconfigured Replication Target IP Address or Hostname. "; $valid = FALSE; } if (!is_port($port)) { $error .= "Misconfigured Replication Target Port. "; $valid = FALSE; } if ($valid) { squid_do_xmlrpc_sync($sync_to_ip, $port, $protocol, $username, $password, $synctimeout); } else { log_error("[squid] XMLRPC sync with '{$sync_to_ip}' aborted due to the following error(s): {$error}"); } } } log_error("[squid] XMLRPC sync completed."); } } } /* Perform the actual XMLRPC sync */ function squid_do_xmlrpc_sync($sync_to_ip, $port, $protocol, $username, $password, $synctimeout) { global $config, $g; if ($username == "" || $password == "" || $sync_to_ip == "" || $port == "" || $protocol == "") { log_error("[squid] A required XMLRPC sync parameter (username, password, replication target, port or protocol) is empty ... aborting pkg sync"); return; } // Take care of IPv6 literal address if (is_ipaddrv6($sync_to_ip)) { $sync_to_ip = "[{$sync_to_ip}]"; } $url = "{$protocol}://{$sync_to_ip}"; /* XML will hold the sections to sync */ $xml = array(); $xml['squid'] = $config['installedpackages']['squid']; $xml['squidupstream'] = $config['installedpackages']['squidupstream']; $xml['squidcache'] = $config['installedpackages']['squidcache']; $xml['squidantivirus'] = $config['installedpackages']['squidantivirus']; $xml['squidnac'] = $config['installedpackages']['squidnac']; $xml['squidtraffic'] = $config['installedpackages']['squidtraffic']; $xml['squidreversegeneral'] = $config['installedpackages']['squidreversegeneral']; $xml['squidreversepeer'] = $config['installedpackages']['squidreversepeer']; $xml['squidreverseuri'] = $config['installedpackages']['squidreverseuri']; $xml['squidauth'] = $config['installedpackages']['squidauth']; $xml['squidusers'] = $config['installedpackages']['squidusers']; /* Assemble XMLRPC payload */ $params = array(XML_RPC_encode($password), XML_RPC_encode($xml)); /* Set a few variables needed for sync */ $method = 'pfsense.merge_installedpackages_section_xmlrpc'; $msg = new XML_RPC_Message($method, $params); $cli = new XML_RPC_Client('/xmlrpc.php', $url, $port); $cli->setCredentials($username, $password); if ($g['debug']) { $cli->setDebug(1); } /* Send our XMLRPC message and timeout after defined sync timeout value*/ $resp = $cli->send($msg, $synctimeout); if (!$resp) { $error = "A communication error occurred while attempting XMLRPC sync with {$url}:{$port}."; log_error("[squid] {$error}"); file_notice("sync_settings", $error, "Squid Settings Sync", ""); } elseif ($resp->faultCode()) { $cli->setDebug(1); $resp = $cli->send($msg, $synctimeout); $error = "An error code was received while attempting XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); log_error("[squid] {$error}"); file_notice("sync_settings", $error, "Squid Settings Sync", ""); } else { log_error("[squid] XMLRPC sync successfully completed with {$url}:{$port}."); } /* Tell Squid to reload our settings on the destination sync host. */ $method = 'pfsense.exec_php'; $execcmd = "require_once('/usr/local/pkg/squid.inc');\n"; $execcmd .= "squid_resync('yes');"; /* Assemble XMLRPC payload */ $params = array(XML_RPC_encode($password), XML_RPC_encode($execcmd)); $msg = new XML_RPC_Message($method, $params); $cli = new XML_RPC_Client('/xmlrpc.php', $url, $port); $cli->setCredentials($username, $password); $resp = $cli->send($msg, $synctimeout); if (!$resp) { $error = "A communication error occurred while attempting XMLRPC sync with {$url}:{$port} (pfsense.exec_php)."; log_error("[squid] {$error}"); file_notice("sync_settings", $error, "Squid Settings Sync", ""); } elseif ($resp->faultCode()) { $cli->setDebug(1); $resp = $cli->send($msg, $synctimeout); $error = "An error code was received while attempting XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); log_error("[squid] {$error}"); file_notice("sync_settings", $error, "Squid Settings Sync", ""); } else { log_error("[squid] XMLRPC reload data success with {$url}:{$port} (pfsense.exec_php)."); } } ?>