- create squidGuard with specified config file # ------------------------------------------------------------------------------ # Notes: # -- for work squidGuard need present ALL destinations; # if dest not present in config - then this item will ignored in operations # (in rebuild DB for example) # ------------------------------------------------------------------------------ # Directories: # work path - $workdir # log path - $workdir + $logdir # ------------------------------------------------------------------------------ require_once('globals.inc'); require_once('config.inc'); require_once('util.inc'); require_once('pfsense-utils.inc'); require_once('pkg-utils.inc'); require_once('filter.inc'); require_once('service-utils.inc'); require_once('squid.inc'); # ------------------------------------------------------------------------------ # files header # ------------------------------------------------------------------------------ define('FILES_DB_HEADER', ' # ------------------------------------------------------------------------------ # File created by squidGuard package GUI # (C)2006 Serg Dvoriancev # ------------------------------------------------------------------------------ '); define('CONFIG_SG_HEADER', " # ============================================================ # SquidGuard configuration file # # This file generated automaticly with SquidGuard configurator # # (C)2006 Serg Dvoriancev # email: dv_serg@mail.ru # ============================================================ "); define('ACL_WARNING_ABSENSE_PASS', "!WARNING! Absence PASS 'all' or 'none' added as 'none'"); # ------------------------------------------------------------------------------ # squid config options # ------------------------------------------------------------------------------ define('REDIRECTOR_OPTIONS_REM', '# squidGuard options'); define('REDIRECTOR_PROGRAM_OPT', 'redirect_program'); define('REDIRECT_BYPASS_OPT', 'redirector_bypass'); define('REDIRECT_CHILDREN_OPT', 'redirect_children'); # ------------------------------------------------------------------------------ # setup count redirector processes will started # * for big count users service increase this option, # but you need use this on powerful system # ------------------------------------------------------------------------------ define('REDIRECTOR_PROCESS_COUNT', '3'); # ------------------------------------------------------------------------------ # squidguard config options # ------------------------------------------------------------------------------ # define default redirection url (redirector get this url for all blocked url's) # * !ATTENTION! this url must be exists; IF url not exist, redirector will't block # (returned to squid some url, what blocked) # ------------------------------------------------------------------------------ define('REDIRECT_BASE_URL', '/sgerror.php'); define('REDIRECT_URL_ARGS', '&a=%a&n=%n&i=%i&s=%s&t=%t&u=%u'); # ------------------------------------------------------------------------------ # squidguard system defines # ------------------------------------------------------------------------------ # !check this! define('SQUID_CONFIGFILE', '/usr/local/etc/squid/squid.conf'); define('TMP_DIR', '/var/tmp'); # not need for check define('SQUIDGUARD_CONFIGFILE', '/squidGuard.conf'); define('SQUIDGUARDCONF_LOGFILE', '/sg_configurator.log'); define('SQUIDGUARD_ACCESSBLOCK_FILE', 'block.log'); define('SQUIDGUARD_CONFBASE_DEF', '/usr/local/etc/squid'); define('SQUIDGUARD_LOGDIR_DEF', '/tmp'); define('SQUIDGUARD_WORKDIR_DEF', '/usr/local/etc/squidGuard'); define('SQUIDGUARD_BINPATH_DEF', '/usr/local/bin'); define('SQUIDGUARD_TMP', '/var/tmp/squidGuard'); // SG temp define('SQUIDGUARD_VAR', '/var/squidGuard'); // SG variables # DB home catalog contains 'Blacklist' and 'User' sub-catalogs define('SQUIDGUARD_DBHOME_DEF', '/var/db/squidGuard'); define('SQUIDGUARD_DB_BLACKLIST', '/bl'); define('SQUIDGUARD_DB_USER', '/usr'); define('SQUIDGUARD_BL_UNPACK', '/unpack'); define('SQUIDGUARD_BL_DB', '/db'); # DB/Blacklist defines define('SQUIDGUARD_BLK_ENTRIES', '/blacklist.files'); define('BLACKLIST_ARCHIVE', '/blacklists.tar'); define('BLK_LOCALFILE', '/tmp/sg_blacklists.tar'); define('DB_REBUILD_SH', '/tmp/squidGuard_db_rebuild.sh'); define('DB_REBUILD_CONF', '/tmp/squidGuard_db_rebuild.conf'); define('BLK_TEMP', '/tmp/sg_blk'); define('SG_BLK_ARC', '/arcdb'); // blk db archive define('SG_INFO_FILE', '/var/squidGuard/sg_db_upd.inf'); # ------------------------------------------------------------------------------ # debug options # ------------------------------------------------------------------------------ define('DEBUG_UPDATE_SQUID_CONF', 'true'); define('DEBUG_UPDATE_SQUIDGUARD_DB', 'true'); define('DEBUG_MAKE_SQUIDGUARD_CONFIG', 'true'); # GUI options define('SQUIDGUARD_LOG_MAXCOUNT', 1000); // max log lines # 0-all, 1-medium; 2-low define('SQUIDGUARD_LOG_LEVEL', 0); # ------------------------------------------------------------------------------ # define('FLT_DEFAULT_ALL', 'all'); define('FLT_NOTALLOWIP', '!in-addr'); # ------------------------------------------------------------------------------ # owner user name (squid system user - need for define rights access) # ------------------------------------------------------------------------------ define('OWNER_NAME', 'proxy'); # ------------------------------------------------------------------------------ # define('DEBUG_ON', 'true'); # ============================================================================== # black list # ============================================================================== # known black list standard names # ------------------------------------------------------------------------------ define('FLT_AD', 'ads'); define('FLT_AGGRESSIVE', 'aggressive'); define('FLT_AUDIOVIDEO', 'audio-video'); define('FLT_DRUGGS', 'druggs'); define('FLT_GAMBLING', 'gambling'); define('FLT_HACKING', 'hacking'); define('FLT_MAIL', 'mail'); define('FLT_PORN', 'porn'); define('FLT_PROXY', 'proxy'); define('FLT_VIOLENCE', 'viol'); define('FLT_WAREZ', 'warez'); # ============================================================================== # SquidGuard Configurator # ============================================================================== $squidguard_config = array(); // squidGuard config array // call default init sg_init(); # ------------------------------------------------------------------------------ # squidguard system fields # ------------------------------------------------------------------------------ define('FLD_SQUIDGUARD', 'squidGuard'); define('FLD_LOGDIR', 'logdir'); define('FLD_DBHOME', 'dbhome'); define('FLD_WORKDIR', 'workdir'); define('FLD_BINPATH', 'binpath'); define('FLD_PROCCESSCOUNT', 'process_count'); define('FLD_SQUIDCONFIGFILE', 'squid_configfile'); define('FLD_ENABLED', 'enabled'); define('FLD_BLACKLISTENABLED', 'blacklist_enabled'); define('FLD_SGCONF_XML', 'sgxml_file'); // other fields define('FLD_ITEM', 'item'); define('FLD_TIMES', 'times'); define('FLD_SOURCES', 'sources'); define('FLD_DESTINATIONS', 'destinations'); define('FLD_REWRITES', 'rewrites'); define('FLD_ACLS', 'acls'); define('FLD_DEFAULT', 'default'); define('FLD_NAME', 'name'); define('FLD_DESCRIPTION', 'description'); define('FLD_IP', 'ip'); define('FLD_URLS', 'urls'); define('FLD_DOMAINS', 'domains'); define('FLD_EXPRESSIONS', 'expressions'); define('FLD_REDIRECT', 'redirect'); define('FLD_TARGETURL', 'targeturl'); define('FLD_REPLACETO', 'replaceto'); define('FLD_LOG', 'log'); define('FLD_ITEM', 'item'); define('FLD_DISABLED', 'disabled'); define('FLD_TIMENAME', 'timename'); define('FLD_DESTINATIONNAME', 'destname'); define('FLD_REDIRECT', 'redirect'); define('FLD_REWRITE', 'rewrite'); define('FLD_REWRITENAME', 'rewritename'); define('FLD_OVERDESTINATIONNAME', 'overdestname'); define('FLD_OVERREDIRECT', 'overredirect'); define('FLD_OVERREWRITE', 'overrewrite'); define('FLD_OVERREWRITENAME', 'overrewritename'); define('FLD_TIMETYPE', 'timetype'); define('FLD_TIMEDAYS', 'timedays'); define('FLD_DATRANGE', 'daterange'); define('FLD_TIMERANGE', 'sg_timerange'); define('FLD_REDIRECTMODE', 'redirect_mode'); // [redirect_mode] = rmod_int ; rmod_301; rmod_302; define('FLD_NOTALLOWINGIP', 'notallowingip'); // not allowing ip in URL // transparent mode define('FLD_SQUID_TRANSPARENT_MODE', 'squid_transparent_mode'); define('FLD_CURRENT_LAN_IP', 'current_lan_ip'); define('FLD_CURRENT_GUI_PORT', 'current_gui_port'); define('FLD_CURRENT_GUI_PROTO', 'current_gui_protocol'); # ------------------------------------------------------------------------------ # sg_init # - initialize config array # ------------------------------------------------------------------------------ function sg_init($init = '') { global $squidguard_config; $squidguard_config = array(); if(empty($init) or !is_array($init) ) { // default init (for generate minimal config) $squidguard_config[FLD_LOGDIR] = SQUIDGUARD_LOGDIR_DEF; $squidguard_config[FLD_DBHOME] = SQUIDGUARD_DBHOME_DEF; $squidguard_config[FLD_WORKDIR] = SQUIDGUARD_WORKDIR_DEF; $squidguard_config[FLD_BINPATH] = SQUIDGUARD_BINPATH_DEF; $squidguard_config[FLD_SQUIDCONFIGFILE] = SQUID_CONFIGFILE; $squidguard_config[FLD_PROCCESSCOUNT] = REDIRECTOR_PROCESS_COUNT; sg_addlog("sg_init: default initialization squidguard_config"); } else { $squidguard_config = $init; sg_addlog("sg_init: ext initialization squidguard_config"); } return $squidguard_config; } # ------------------------------------------------------------------------------ # sg_loadconfig_xml # ------------------------------------------------------------------------------ function sg_load_configxml($filename) { global $squidguard_config; sg_init(); if (file_exists($filename)) { $xmlconf = file_get_contents($filename); sg_addlog("sg_load_configxml: load config from $filename"); if (!empty($xmlconf)) { $squidguard_config = $xmlconf[FLD_SQUIDGUARD]; sg_addlog("sg_load_configxml: update config success."); } else sg_addlog("sg_load_configxml: update config error."); } else sg_addlog("sg_load_configxml: error load config from $filename - file not exists."); } # ------------------------------------------------------------------------------ # sg_saveconfig_xml # ------------------------------------------------------------------------------ function sg_save_configxml($filename) { global $squidguard_config; $xmlconf = dump_xml_config($squidguard_config, FLD_SQUIDGUARD); file_put_contents($filename, $xmlconf); } # ------------------------------------------------------------------------------ # sg_reconfigure # - squidguard reconfiguration # ------------------------------------------------------------------------------ function sg_reconfigure() { global $squidguard_config; sg_addlog("sg_reconfigure: start."); // 1. check system sg_check_system(); // 2. reconfigure user db sg_reconfigure_user_db(); // 3. generate squidGuard config $conf_file = SQUIDGUARD_LOGDIR_DEF . SQUIDGUARD_CONFIGFILE; $conf = sg_build_config(); if ($conf) { $conf = implode("\n", $conf); if ($squidguard_config[FLD_WORKDIR]) $conf_file = $squidguard_config[FLD_WORKDIR] . SQUIDGUARD_CONFIGFILE; file_put_contents($conf_file, $conf); file_put_contents('/usr/local/etc/squid' . SQUIDGUARD_CONFIGFILE, $conf); // << squidGuard want config '/usr/local/etc/squid' by default set_file_access($squidguard_config[FLD_WORKDIR], OWNER_NAME, 0755); sg_addlog("sg_reconfigure: generate squidGuard config and save to $conf_file."); } // 4. reconfigure squid squid_reconfigure(); sg_addlog("sg_reconfigure: end."); } // ------------------------------------------------------------ // squid_reconfigure // Insert in '/usr/local/squid/etc/squid.conf' options: // redirector_bypass on // redirect_program /usr/local/squidGuard/bin/squidGuard -c /path_to_config_file // redirect_children 1 // ------------------------------------------------------------ function squid_reconfigure($remove_only = '') { global $config; global $squidguard_config; $conf = ''; $cust_opt = $config['installedpackages']['squid']['config'][0]['custom_options']; sg_addlog("squid_reconfigure: begin"); // remove old options if (!empty($cust_opt)) { $conf = explode(";", $cust_opt); foreach ($conf as $key => $c_opt) { $t_opt = ltrim($c_opt); if ((strpos($t_opt, REDIRECTOR_PROGRAM_OPT) === 0) or (strpos($t_opt, REDIRECT_BYPASS_OPT) === 0) or (strpos($t_opt, REDIRECT_CHILDREN_OPT) === 0)) unset($conf[$key]); } sg_addlog("squid_reconfigure: remove old redirector options from Squid config."); } // add new options - if squidGuard enabled if (empty($remove_only) && ($squidguard_config[FLD_ENABLED] === 'on')) { $redirector_path = $squidguard_config[FLD_BINPATH] . '/squidGuard'; $redirector_conf = $squidguard_config[FLD_WORKDIR] . SQUIDGUARD_CONFIGFILE; $conf[] = REDIRECTOR_PROGRAM_OPT . " $redirector_path -c $redirector_conf"; $conf[] = REDIRECT_BYPASS_OPT . " on"; $conf[] = REDIRECT_CHILDREN_OPT . " " . REDIRECTOR_PROCESS_COUNT; sg_addlog("squid_reconfigure: add new redirector options to Squid config."); } // update config if (is_array($conf)) $conf = implode(";", $conf); $config['installedpackages']['squid']['config'][0]['custom_options'] = $conf; write_config('Update squidGuard option to squid config.'); squid_resync(); } // ------------------------------------------------------------ // sg_check_system // - check squidguard catalog's and access right's // ------------------------------------------------------------ function sg_check_system() { global $squidguard_config; // check work_dir & create if not exists $work_dir = $squidguard_config[FLD_WORKDIR]; if (!empty($work_dir)) { // check dir's if (!file_exists($work_dir)) { mwexec("mkdir -p " . $work_dir); sg_addlog("Create work dir $work_dir"); // set access right set_file_access($work_dir, OWNER_NAME, 0755); } } unset($work_dir); // check log_dir & create if not exists $log_dir = $squidguard_config[FLD_LOGDIR]; if (!empty($log_dir)) { if (!file_exists($log_dir)) { mwexec("mkdir -p " . $log_dir); sg_addlog("Create log dir $log_dir"); } // set access right - need start any time; // (SG possible start from console and log file will have only root access) set_file_access($log_dir, OWNER_NAME, 0755); } unset($log_dir); // check db dir $db_dir = $squidguard_config[FLD_DBHOME]; if (!empty($db_dir)) { if (!file_exists($db_dir)) { mwexec("mkdir -p $db_dir"); $sg_addlog("Create db dir $db_dir"); // set access right set_file_access($db_dir, OWNER_NAME, 0755); } } unset($db_dir); } # ============================================================================== # squidGuard DB # ============================================================================== # sg_reconfigure_user_db # - reconfigure(update) db user entries # ------------------------------------------------------------------------------ function sg_reconfigure_user_db() { global $squidguard_config; $dbhome = $squidguard_config[FLD_DBHOME]; sg_addlog("sg_reconfigure_user_db: begin at '$dbhome'"); // create user DB catalog, if not extsts if (!file_exists($dbhome)) { if (!mkdir($dbhome, 0755)) { sg_addlog("sg_reconfigure_user_db: ERROR create user DB directory $dbhome"); return; } set_file_access($dbhome, OWNER_NAME, 0755); sg_addlog("sg_reconfigure_user_db: Create user DB directory $dbhome"); } // update destinations to db $dests = $squidguard_config[FLD_DESTINATIONS]; if(!empty($dests)){ $dst_names = Array(); $dst_list = Array(); // destinations list sg_addlog("sg_reconfigure_user_db: add user entries"); foreach($dests[FLD_ITEM] as $dst) { $path = "$dbhome/" . $dst[FLD_NAME]; $dst_names[] = $path; $dst_list["usr_{$dst[FLD_NAME]}"] = $dst[FLD_NAME]; // 1. check destination catalog and create them, if need if (!file_exists($path)) { if (!mkdir ($path, 0755)) { sg_addlog("sg_reconfigure_user_db: ERROR create dir $path"); return; } sg_addlog("sg_reconfigure_user_db: Create dir $path"); } // 2. build domains file $domains = $dst[FLD_DOMAINS]; if (!empty($domains)) { $content = str_replace(" ", "\n", $domains); $content = trim($content); file_put_contents($path . '/domains', $content); sg_addlog("sg_reconfigure_user_db: -- add {$dst[FLD_NAME]} domains '$domains'"); } unset($domains); // 3. build urls file $urls = $dst[FLD_URLS]; if (!empty($urls)) { $content = str_replace(" ", "\n", $urls); $content = trim($content); file_put_contents($path . '/urls', $content); sg_addlog("sg_reconfigure_user_db: -- add {$dst[FLD_NAME]} urls '$content'"); } unset($urls); // 4. build expression file $expr = $dst[FLD_EXPRESSIONS]; if (!empty($expr)) { $content = str_replace("|", " ", $expr); $content = trim($content); // delete first and last unnecessary '|' symbols $content = str_replace(" ", "|", $content); file_put_contents($path . '/expressions', $content); sg_addlog("sg_reconfigure_user_db: -- add {$dst[FLD_NAME]} expressions '$content'"); } unset($expr); } // 4. recursive set files access set_file_access($dbhome, OWNER_NAME, 0755); // 5. rebuild user db ('/var/db/squidGuard') sg_rebuild_db("_usrdb", $dbhome, $dst_list); } else sg_addlog("sg_reconfigure_user_db: STOPPED; User destinations list empty"); // 6. remove unused db entries sg_remove_unused_db_entries(); sg_addlog("sg_reconfigure_user_db: end."); } // ------------------------------------------------------------ // sg_remove_unused_db_entries // - remove unused DB entries // ------------------------------------------------------------ function sg_remove_unused_db_entries() { global $squidguard_config; $db_entries = array(); $file_list = ''; $dbhome = $squidguard_config[FLD_DBHOME]; $workdir = $squidguard_config[FLD_WORKDIR]; sg_addlog("sg_remove_unused_db_entries: begin"); // black list entries // * worked only with 'blacklist entries list file - else may be deleted black list entry if (file_exists($workdir . SQUIDGUARD_BLK_ENTRIES)) { $file_for_del = array(); // load blk entries $db_entries = explode("\n", file_get_contents($workdir . SQUIDGUARD_BLK_ENTRIES)); // $db_entries + add user entries $dests = $squidguard_config[FLD_DESTINATIONS]; if (!empty($dests)) { foreach($dests[FLD_ITEM] as $dst) { $db_entries[] = $dst[FLD_NAME]; } } // diff between file list and entries list $file_list = scan_dir($dbhome); if (is_array($file_list) and is_array($db_entries)) $file_for_del = array_diff($file_list, $db_entries); // delete if (is_array($file_for_del) and !empty($file_for_del)) { foreach($file_for_del as $fd) { $file_fd = "$dbhome/$fd"; if (($fd != "") && ($fd != ".") && ($fd != "..")) { if (file_exists($file_fd)) { mwexec("rm -R . $file_fd"); sg_addlog("sg_remove_unused_db_entries: Removed file '$file_fd'"); } else sg_addlog("sg_remove_unused_db_entries: File $file_fd not found"); } } } } sg_addlog("sg_remove_unused_db_entries: end"); } # ------------------------------------------------------------------------------ # sg_rebuild_db Rebuild squidGuard DB from list items # ------------------------------------------------------------------------------ # $shtag - rebuild SH script TAG # $rdb_dbhome - DB directory (default: '/var/db/squidGuard') # $rdb_itemslist - items list as ['dest_key']='dest_DB_path' # dest_DB_path - path without '$rdb_dbhome' # example: ['ads_ban']='ads/banners' -> '/var/db/squidGuard/ads/banners' # ------------------------------------------------------------------------------ function sg_rebuild_db($shtag, $rdb_dbhome, $rdb_itemslist) { global $squidguard_config; $conf = ''; $conf_path = ''; $logdir = $squidguard_config[FLD_LOGDIR]; $dbhome = $squidguard_config[FLD_DBHOME]; // current dbhome dir if (!empty($rdb_dbhome)) $dbhome = $rdb_dbhome; sg_addlog("sg_rebuild_db: Begin with path '$dbhome'."); // define - where config will placed $conf_path = "/tmp/squidGuard_rebuild.conf" . $shtag; // make rebuild config; include all found dest items $conf = sg_create_rebuild_config($dbhome, $rdb_itemslist); file_put_contents($conf_path, $conf); set_file_access($conf_path, OWNER_NAME, 0750); sg_addlog("sg_rebuild_db: Create temporary config '$conf_path'."); // *** SH script *** $sh_scr = Array(); $sh_scr[] = "#!/bin/sh"; $sh_scr[] = "cd $dbhome"; $cmd = $squidguard_config[FLD_BINPATH] . "/squidGuard -c $conf_path -C all"; $sh_scr[] = $cmd; $sh_scr[] = "wait"; // wait while SG rebuild DB // set DB owner and right access $sh_scr[] = "chown -R -v " . OWNER_NAME . " $dbhome"; // restart squid for changes to take effects $sh_scr[] = "/usr/local/sbin/squid -k reconfigure"; // store & exec sh $sh_scr = implode("\n", $sh_scr); $shfile = DB_REBUILD_SH . $shtag; file_put_contents($shfile, $sh_scr); set_file_access($shfile, OWNER_NAME, 0750); mwexec_bg($shfile); sg_addlog("sg_rebuild_db: Started SH script '$shfile'."); sg_addlog("sg_rebuild_db: End."); } # ------------------------------------------------------------------------------ # sg_create_rebuild_config # Create config for DB rebuilding # Default rule - block all # Variables: # $blk_dbhome - temporary DB home dir, may be different with DBHOME # $blk_destlist - is array as [dst_name] = 'path', # where path - catalog without dbhome path # For example: dbhome is '/var/db/squidGuard/', # path can be 'usr/ads' or 'bl/poxy' # ------------------------------------------------------------------------------ function sg_create_rebuild_config($blk_dbhome, $blk_destlist) { global $squidguard_config; $sgconf = array(); $logdir = $squidguard_config[FLD_LOGDIR]; $dbhome = $squidguard_config[FLD_DBHOME]; // current dbhome dir if (!empty($blk_dbhome)) $dbhome = $blk_dbhome; sg_addlog("sg_create_rebuild_config: Begin with dbhome='$dbhome'."); // header $sgconf[] = CONFIG_SG_HEADER; // init section $sgconf[] = "logdir $logdir"; $sgconf[] = "dbhome $dbhome"; $sgconf[] = ""; // destination section if (is_array($blk_destlist)) { foreach($blk_destlist as $dst => $dpath) { $tmp_s = array(); // check item elements if (file_exists("$dbhome/$dpath/domains")) $tmp_s[] = "\t domainlist $dpath/domains"; if (file_exists("$dbhome/$dpath/urls")) $tmp_s[] = "\t urllist $dpath/urls"; if (file_exists("$dbhome/$dpath/expressions")) $tmp_s[] = "\t expressionlist $dpath/expressions"; // create only valid items if (!empty($tmp_s)) { $sgconf[] = "dest $dst {"; $sgconf[] = implode("\n", $tmp_s); $sgconf[] = "}"; $sgconf[] = ""; sg_addlog("sg_create_rebuild_config: -- added item '$dst' = '$dbhome/$dpath'."); } else sg_addlog("sg_create_rebuild_config: -- ignored empty item '$dst' = '$dbhome/$dpath'."); } } // acl section $sgconf[] = "acl {"; $sgconf[] = "\t default {"; $sgconf[] = "\t\t pass all"; // yes, now this 'pass all' - this is only temp config $sgconf[] = "\t\t redirect " . sg_redirector_base_url('404', true); // use sgerror only! $sgconf[] = "\t }"; $sgconf[] = "}"; sg_addlog("sg_create_rebuild_config: End."); return implode("\n", $sgconf); } // ============================================================ // Log // ------------------------------------------------------------ // sg_addlog // ------------------------------------------------------------ function sg_addlog($log, $level = 0) { global $squidguard_config; // log level if ($level < SQUIDGUARD_LOG_LEVEL) return; $logfile = ''; $logfile = SQUIDGUARD_LOGDIR_DEF . SQUIDGUARDCONF_LOGFILE; $log_content = array(); setlocale(LC_TIME, ''); $dt = date("d.m.Y H:i:s"); // define logfile if (!empty($squidguard_config)) { if (file_exists($squidguard_config[FLD_LOGDIR])) $logfile = $squidguard_config[FLD_LOGDIR] . SQUIDGUARDCONF_LOGFILE; } else $log_content[] = "$dt : " . "sg_addlog: ERROR: squidguard_config is empty"; $tmplog = ''; if (file_exists($logfile)) $tmplog = file_get_contents($logfile); $log_content = explode("\n", $tmplog); unset($tmplog); // shrink to MAXCOUNT log entries $log_content[] = "$dt : $log"; while (count($log_content) > SQUIDGUARD_LOG_MAXCOUNT) array_shift($log_content); file_put_contents($logfile, implode("\n", $log_content)); } // ------------------------------------------------------------ // sg_getlog // ------------------------------------------------------------ function sg_getlog($last_entries_count) { global $squidguard_config; $log_content = ''; $logfile = SQUIDGUARD_LOGDIR_DEF . SQUIDGUARDCONF_LOGFILE; // define logfile if (!empty($squidguard_config)) if (file_exists($squidguard_config[FLD_LOGDIR])) $logfile = $squidguard_config[FLD_LOGDIR] . SQUIDGUARDCONF_LOGFILE; // get log last 100 entries if (file_exists($logfile)) { $log_content = file_get_contents($logfile); $log_content = explode("\n", $log_content); while (count($log_content) > $last_entries_count) array_shift($log_content); // insert log file name on top $log_content[0] = $logfile; $log_content = implode("\n", $log_content); } return $log_content; } # ------------------------------------------------------------- # sg_build_default_config # default rule - block all # $dest_list - is array as [dst_name] = path, where path - without dbhome # For example: dbhome is '/var/db/squidGuard', path can be 'usr/ads' or 'bl/poxy' # ------------------------------------------------------------- function sg_build_default_config() { global $squidguard_config; $sgconf = array(); // header $sgconf[] = CONFIG_SG_HEADER; // init section $sgconf[] = "logdir {$squidguard_config[FLD_LOGDIR]}"; $sgconf[] = "dbhome {$squidguard_config[FLD_DBHOME]}"; $sgconf[] = ""; // acl section $sgconf[] = "acl {"; $sgconf[] = "\t default {"; $sgconf[] = "\t\t pass none"; $sgconf[] = "\t\t redirect " . sg_redirector_base_url('404 Check proxy filter settings on errors.', true); # use only sgerror.php $sgconf[] = "\t }"; $sgconf[] = "}"; sg_addlog("sg_build_default_config: ATTENTION! Created default configuration. All content will blocked."); sg_addlog("sg_build_default_config: End."); return implode("\n", $sgconf); } // ------------------------------------------------------------------------------------------------ // sg_redirector_base_url // $url - url where redirect to // $use_internal - ignore 'Redirect mode' option, use internal (for rebuild config, for example) // ------------------------------------------------------------------------------------------------ function sg_redirector_base_url($url, $use_internal = false) { global $squidguard_config; $rdr_path = ''; // Redirect option must have any valid URL // 301:redirect_url if (!$use_internal and !empty($url) and ($squidguard_config[FLD_REDIRECTMODE] === 'rmod_301')) { $rdr_path = "301:$url"; } // 302:redirect_url elseif (!$use_internal and !empty($url) and ($squidguard_config[FLD_REDIRECTMODE] === 'rmod_302')) { $rdr_path = "302:$url"; } // sgerror.php else { $rdr_path = REDIRECT_BASE_URL; // check GUI port settings if (isset($squidguard_config[FLD_CURRENT_GUI_PORT]) and !empty($squidguard_config[FLD_CURRENT_GUI_PORT])) { $rdr_path = ":" . $squidguard_config[FLD_CURRENT_GUI_PORT] . $rdr_path; } // check Lan IP port settings $rdr_path = $squidguard_config[FLD_CURRENT_LAN_IP] . $rdr_path; // check GUI protocol settings if ($squidguard_config[FLD_CURRENT_GUI_PROTO] === "https") $rdr_path = "https://" . $rdr_path; else $rdr_path = "http://" . $rdr_path; // arguments // Attention: // order arg's must be: first-URL, last-SG variables // SG have bug, what broke data after his var's $tmp_url = ltrim($url); // not need encoded url string. only err_code line if (eregi("^https{0,1}://", $tmp_url) === false) $tmp_url = rawurlencode($tmp_url); $rdr_path = $rdr_path . "?url=" . $tmp_url . REDIRECT_URL_ARGS; // rawurlencode($tmp_url) . REDIRECT_URL_ARGS; unset($tmp_url); } sg_addlog("sg_redirector_base_url: select redirector base url ($rdr_path)"); sg_addlog("sg_redirector_base_url: End."); return $rdr_path; } // ------------------------------------------------------------ // sg_build_config // ------------------------------------------------------------ function sg_build_config() { global $squidguard_config; $sgconf = array(); # $redirect_base_url = REDIRECT_BASE_URL; sg_addlog("sg_build_config: create squidGuard config."); if(!is_array($squidguard_config)) { sg_addlog("sg_build_config: error configuration in squidguard_config."); return sg_build_default_config(); } // check configuration data sg_addlog("sg_build_config: checking configuration data."); $s = sg_check_config_data(); if ($s) { sg_addlog("sg_build_config: error configuration data. It's all errors: \n$s"); sg_addlog("sg_build_config: terminated."); return sg_build_default_config(); } unset($s); // --- Header --- $sgconf[] = CONFIG_SG_HEADER; // init $sgconf[] = "logdir " . $squidguard_config[FLD_LOGDIR]; $sgconf[] = "dbhome " . $squidguard_config[FLD_DBHOME]; // --- Times --- if ($squidguard_config[FLD_TIMES]) { sg_addlog("sg_build_config: add times"); foreach($squidguard_config[FLD_TIMES][FLD_ITEM] as $tm) { $sgconf[] = ""; if ($tm[FLD_DESCRIPTION]) $sgconf[] = "# " . $tm[FLD_DESCRIPTION]; $sgconf[] = "time " . $tm[FLD_NAME] . " {"; foreach($tm[FLD_ITEM] as $itm) { switch ($itm[FLD_TIMETYPE]) { case "weekly": $sgconf[] = "\t weekly " . $itm[FLD_TIMEDAYS] . " " . $itm[FLD_TIMERANGE]; break; case "date": $sgconf[] = "\t date " . $itm[FLD_DATERANGE] . " " . $itm[FLD_TIMERANGE]; break; } } $sgconf[] = "}"; } } // --- Sources --- if ($squidguard_config[FLD_SOURCES]) { sg_addlog("sg_build_config: add sources"); foreach($squidguard_config[FLD_SOURCES][FLD_ITEM] as $src) { $sgconf[] = ""; if ($src[FLD_DESCRIPTION]) $sgconf[] = "# " . $src[FLD_DESCRIPTION]; $sgconf[] = "src " . $src[FLD_NAME] . " {"; // IP if ($src[FLD_IP]) { $s_ip = explode(" ", $src[FLD_IP]); foreach($s_ip as $ip) if (!empty($ip)) $sgconf[] = "\t ip " . $ip; } // domains if ($src[FLD_DOMAINS]) { $dms = explode(" ", $src[FLD_DOMAINS]); foreach($dms as $dm) if (!empty($dm)) $sgconf[] = "\t domain " . $dm; } if ($src[FLD_LOG]) $sgconf[] = "\t log " . SQUIDGUARD_ACCESSBLOCK_FILE; $sgconf[] = "}"; } } // --- Blacklist --- # # Note! Blacklist must be added to config permanently. It's need for rebuild DB # $db_entries = sg_entries_blacklist(); if (($squidguard_config[FLD_BLACKLISTENABLED] === 'on') and $db_entries) { $log_entr_added = ''; $log_entr_ignored = ''; sg_addlog("sg_build_config: add blacklist entries"); foreach($db_entries as $key => $ent) { $ent_state = array(); $file_dms = $squidguard_config[FLD_DBHOME] . "/$ent/domains"; $file_urls = $squidguard_config[FLD_DBHOME] . "/$ent/urls"; $file_expr = $squidguard_config[FLD_DBHOME] . "/$ent/expressions"; // check blacklist acl state if (file_exists($file_dms)) { $ent_state['exists'] = 'on'; $ent_state[FLD_DOMAINS] = 'on'; } if (file_exists($file_urls)) { $ent_state['exists'] = 'on'; $ent_state[FLD_URLS] = 'on'; } if (file_exists($file_expr)) { $ent_state['exists'] = 'on'; $ent_state[FLD_EXPRESSIONS] = 'on'; } // create config $sgconf[] = ""; if ($ent_state['exists']) { $sgconf[] = "dest $ent {"; $dstname = $ent; if ($ent_state[FLD_DOMAINS]) $sgconf[] = "\t domainlist $ent/domains"; if ($ent_state[FLD_EXPRESSIONS]) $sgconf[] = "\t expressionlist $ent/expressions"; if ($ent_state[FLD_URLS]) $sgconf[] = "\t urllist $ent/urls"; $sgconf[] = "\t log " . SQUIDGUARD_ACCESSBLOCK_FILE; $sgconf[] = "}"; $log_entr_added .= " $ent;"; } else { $sgconf[] = "\t# Config ERROR: Destination '$ent' not found in DB"; $log_entr_ignored .= " $ent;"; } } // log 'added' if (!empty($log_entr_added)) sg_addlog("sg_build_config: added: \n $log_entr_added \n"); // log 'ignored' if (!empty($log_entr_ignored)) sg_addlog("sg_build_config: ignored: \n $log_entr_ignored \n"); } // --- Destinations --- if ($squidguard_config[FLD_DESTINATIONS]) { sg_addlog("sg_build_config: add destinations"); $sgconf[] = ""; $log_entr_added = ''; foreach($squidguard_config[FLD_DESTINATIONS][FLD_ITEM] as $dst) { $dstname = $dst[FLD_NAME]; $sgconf[] = ""; if ($dst[FLD_DESCRIPTION]) $sgconf[] = "# " . $dst[FLD_DESCRIPTION]; $sgconf[] = "dest $dstname {"; if ($dst[FLD_DOMAINS]) $sgconf[] = "\t domainlist $dstname/domains"; if ($dst[FLD_EXPRESSIONS]) $sgconf[] = "\t expressionlist $dstname/expressions"; if ($dst[FLD_URLS]) $sgconf[] = "\t urllist $dstname/urls"; if ($dst[FLD_REDIRECT] && is_url($dst[FLD_REDIRECT])) $sgconf[] = "\t redirect " . sg_redirector_base_url($dst[FLD_REDIRECT]); if ($dst[FLD_LOG]) $sgconf[] = "\t log " . SQUIDGUARD_ACCESSBLOCK_FILE; $sgconf[] = "}"; $log_entr_added .= " $dstname;"; } // log if (!empty($log_entr_added)) sg_addlog("sg_build_config: added: \n $log_entr_added \n"); else sg_addlog("sg_build_config: added: Nothing."); } // --- Rewrites --- if ($squidguard_config[FLD_REWRITES]) { sg_addlog("sg_build_config: add rewrites."); $log_entr_added = ''; foreach($squidguard_config[FLD_REWRITES][FLD_ITEM] as $rew) { $sgconf[] = ""; $sgconf[] = "rew " . $rew[FLD_NAME] . " {"; foreach ($rew[FLD_ITEM] as $rw) $sgconf[] = "\t s@." . $rw[FLD_TARGETURL] . "@" . $rw[FLD_REPLACETO]."@r"; if ($rew[FLD_LOG]) $sgconf[] = "\t log " . SQUIDGUARD_ACCESSBLOCK_FILE; $sgconf[] = "}"; $log_entr_added .= " {$rew[FLD_NAME]};"; } // log if (!empty($log_entr_added)) sg_addlog("sg_build_config: added: \n $log_entr_added \n"); else sg_addlog("sg_build_config: added: Nothing."); } # ---------------------------------------- $entry_blacklist = sg_entries_blacklist(); // --- ACL --- $sgconf[] = ""; $sgconf[] = "acl {"; if ($squidguard_config[FLD_ACLS]) { sg_addlog("sg_build_config: add ACL"); $log_entr_added = ''; foreach($squidguard_config[FLD_ACLS][FLD_ITEM] as $acl) { if ($squidguard_config[FLD_BLACKLISTENABLED] !== 'on') { $tarray = explode(" ", $acl[FLD_DESTINATIONNAME]); $varray = explode(" ", $acl[FLD_OVERDESTINATIONNAME]); // delete blacklist entries from 'pass' if blacklist disabled foreach($entry_blacklist as $entry) { $tk = array_search($entry, $tarray); if ($tk !== false) unset ($tarray[$tk]); $tk = array_search("!$entry", $tarray); if ($tk !== false) unset($tarray[$tk]); $tk = array_search($entry, $varray); if ($tk !== false) unset ($varray[$tk]); $tk = array_search("!$entry", $varray); if ($tk !== false) unset ($varray[$tk]); } $acl[FLD_DESTINATIONNAME] = implode (" ", $tarray); $acl[FLD_OVERDESTINATIONNAME] = implode (" ", $varray); } if (!$acl[FLD_DISABLED]) { // not allowing IP in URL if ($acl[FLD_NOTALLOWINGIP]) { $acl[FLD_DESTINATIONNAME] = "!in-addr " . $acl[FLD_DESTINATIONNAME]; $acl[FLD_OVERDESTINATIONNAME] = "!in-addr " . $acl[FLD_OVERDESTINATIONNAME]; } // re-order acl pass () $acl[FLD_DESTINATIONNAME] = sg_aclpass_reorder($acl[FLD_DESTINATIONNAME]); $acl[FLD_OVERDESTINATIONNAME] = sg_aclpass_reorder($acl[FLD_OVERDESTINATIONNAME]); if ($acl[FLD_DESCRIPTION]) $sgconf[] = "\t # " . $acl[FLD_DESCRIPTION]; if ($acl[FLD_TIMENAME]) { // ontime $sgconf[] = "\t " . $acl[FLD_NAME] . " within " . $acl[FLD_TIMENAME] . " { "; $sgconf[] = "\t\t pass " . $acl[FLD_DESTINATIONNAME]; if ($acl[FLD_REDIRECT]) { if (is_url($acl[FLD_REDIRECT])) $sgconf[] = "\t\t redirect " . sg_redirector_base_url($acl[FLD_REDIRECT]); # $redirect_user_url . rawurlencode($acl[FLD_REDIRECT]); else $sgconf[] = "\t\t redirect " . sg_redirector_base_url(''); # $redirect_user_url . "?msg=" . htmlspecialchars($acl[FLD_REDIRECT]); } if ($acl[FLD_REWRITENAME]) $sgconf[] = "\t\t rewrite " . $acl[FLD_REWRITENAME]; if ($acl[FLD_LOG]) $sgconf[] = "\t\t log " . SQUIDGUARD_ACCESSBLOCK_FILE; // overtime $sgconf[] = "\t } else {"; $sgconf[] = "\t\t pass " . $acl[FLD_OVERDESTINATIONNAME]; if ($acl[FLD_OVERREDIRECT] && is_url($acl[FLD_OVERREDIRECT])) $sgconf[] = "\t\t redirect " . sg_redirector_base_url($acl[FLD_OVERREDIRECT]); # $redirect_base_url . rawurlencode($acl[FLD_OVERREDIRECT]); if ($acl[FLD_OVERREWRITENAME]) $sgconf[] = "\t\t rewrite " . $acl[FLD_OVERREWRITENAME]; if ($acl[FLD_LOG]) $sgconf[] = "\t\t log " . SQUIDGUARD_ACCESSBLOCK_FILE; $sgconf[] = "\t }"; } else { $sgconf[] = "\t " . $acl[FLD_NAME] . " { "; $sgconf[] = "\t\t pass " . $acl[FLD_DESTINATIONNAME]; if ($acl[FLD_REDIRECT] && is_url($acl[FLD_REDIRECT])) $sgconf[] = "\t\t redirect " . sg_redirector_base_url($acl[FLD_REDIRECT]); # $redirect_base_url . rawurlencode($acl[FLD_REDIRECT]); if ($acl[FLD_REWRITENAME]) $sgconf[] = "\t\t rewrite " . $acl[FLD_REWRITENAME]; if ($acl[FLD_LOG]) $sgconf[] = "\t\t log " . SQUIDGUARD_ACCESSBLOCK_FILE; $sgconf[] = "\t }"; } $sgconf[] = ""; } $log_entr_added .= " {$acl[FLD_NAME]};"; } // log if (!empty($log_entr_added)) sg_addlog("sg_build_config: added: \n $log_entr_added \n"); else sg_addlog("sg_build_config: added: Nothing."); } // --- Default --- $def = $squidguard_config[FLD_DEFAULT]; sg_addlog("sg_build_config: add Default"); if ($def) { // delete blacklist entries from 'pass' if blacklist disabled if ($squidguard_config[FLD_BLACKLISTENABLED] !== 'on') { $tarray = explode(" ", $def[FLD_DESTINATIONNAME]); foreach($entry_blacklist as $entry) { $tk = array_search($entry , $tarray); if ($tk !== false) unset ($tarray[$tk]); $tk = array_search("!$entry" , $tarray); if ($tk !== false) unset ($tarray[$tk]); } $def[FLD_DESTINATIONNAME] = implode (" ", $tarray); } // not allowing IP in URL if ($def[FLD_NOTALLOWINGIP]) $def[FLD_DESTINATIONNAME] = "!in-addr " . $def[FLD_DESTINATIONNAME]; // re-order acl pass () $def[FLD_DESTINATIONNAME] = sg_aclpass_reorder($def[FLD_DESTINATIONNAME]); // 'Default' used without time $sgconf[] = "\t default { "; $sgconf[] = "\t\t pass " . $def[FLD_DESTINATIONNAME]; if ($def[FLD_REDIRECT] && is_url($def[FLD_REDIRECT])) { $sgconf[] = "\t\t redirect " . sg_redirector_base_url($def[FLD_REDIRECT]); # $redirect_base_url . rawurlencode($def[FLD_REDIRECT]); } else $sgconf[] = "\t\t redirect " . sg_redirector_base_url(''); # $redirect_base_url; if ($def[FLD_LOG]) $sgconf[] = "\t\t log " . SQUIDGUARD_ACCESSBLOCK_FILE; $sgconf[] = "\t }"; } // if def else { sg_addlog("sg_build_config: error - ACL 'default' is empty, use as default 'block all'."); $sgconf[] = "\t default { "; $sgconf[] = "\t\t pass none"; $sgconf[] = "\t\t redirect " . sg_redirector_base_url(''); # $redirect_base_url; $sgconf[] = "\t }"; } // --- ACL end --- $sgconf[] = "}"; return $sgconf; } // ------------------------------------------------------------ // // ------------------------------------------------------------ function sg_aclpass_reorder($pass) { $ar_pass = explode(" ", $pass); // 'pass' order: if (is_array($ar_pass)) { $pass_end = ''; $pass_fst = array(); $pass_lst = array(); foreach ($ar_pass as $val) { $tk = trim($val); if ($tk === 'all' or $tk === 'none') $pass_end = $val; elseif (strpos($tk, "!") !== false) $pass_lst[] = $val; else $pass_fst[] = $val; } $ar_pass = array_merge($pass_fst, $pass_lst); $ar_pass[] = $pass_end; } return implode(" ", $ar_pass); } // ------------------------------------------------------------ // sg_check_config_data // ------------------------------------------------------------ function sg_check_config_data () { global $squidguard_config; $check_log = array(); $times = array(); $sources = array(); $destinations = array(); $rewrites = array(); $acls = array(); // --- Times --- if ($squidguard_config[FLD_TIMES]) { foreach($squidguard_config[FLD_TIMES][FLD_ITEM] as $tm) { // check name as unique and name format $tm_name = $tm[FLD_NAME]; $s = check_name($tm_name); if ($s) $check_log[] = "TIME '$tm_name' error: $s"; $times[] = $tm_name; $key_tm = array_count_values($times); if ($key_tm[$tm_name] > 1) $check_log[] = "TIME '$tm_name' error: duplicate time name '$tm_name'"; // check time items format } } // --- Sources --- if ($squidguard_config[FLD_SOURCES]) { foreach($squidguard_config[FLD_SOURCES][FLD_ITEM] as $src) { // check name as unique and name format $src_name = $src[FLD_NAME]; $s = check_name($src_name); if ($s) $check_log[] = "SOURCE '$src_name'error: $s"; $sources[] = $src_name; $key_src = array_count_values($sources); if ($key_src[$src_name] > 1) $check_log[] = "SOURCE '$src_name' error: duplicate source name '$src_name'"; // check IP's } } // --- Destinations --- if ($squidguard_config[FLD_DESTINATIONS]) { foreach($squidguard_config[FLD_DESTINATIONS][FLD_ITEM] as $dst) { // check name as unique and name format $dst_name = $dst[FLD_NAME]; $s = check_name($dst_name); if ($s) $check_log[] = "DESTINATION '$dst_name' error: $s"; $destinations[] = $dst_name; $key_dst = array_count_values($destinations); if ($key_dst[$dst_name] > 1) $check_log[] = "DESTINATION '$dst_name' error: duplicate destination name '$dst_name'"; // check urls // check domains // check expressions // check redirection url } } // --- Blacklist --- $blk_entries_file = $squidguard_config[FLD_WORKDIR] . SQUIDGUARD_BLK_ENTRIES; if (file_exists($blk_entries_file)) { $blk_entr = explode("\n", file_get_contents($blk_entries_file)); foreach($blk_entr as $entr) { if ($entr) { $destinations[] = $entr; // check entry for exists $dbfile = $squidguard_config[FLD_DBHOME] . "/$entr"; if (!file_exists($dbfile)) $check_log[] = "BLACKLIST '$entr' error: file '$dbfile' not found"; } } } // --- Rewrites --- if ($squidguard_config[FLD_REWRITES]) { foreach($squidguard_config[FLD_REWRITES][FLD_ITEM] as $rw) { // check check name as unique and name format $rw_name = $rw[FLD_NAME]; $s = check_name($dst_name); if ($s) $check_log[] = "REWRITE '$rw_name' error: $s"; $rewrites[] = $rw_name; $key_rw = array_count_values($rewrites); if ($key_rw[$rw_name] > 1) $check_log[] = "REWRITE '$rw_name' error: duplicate rewrite name '$rw_name'"; } } $key_times = array_count_values($times); $key_sources = array_count_values($sources); $key_destinations = array_count_values($destinations); $key_rewrites = array_count_values($rewrites); // --- ACLs --- if ($squidguard_config[FLD_ACLS]) { $acls = array(); foreach($squidguard_config[FLD_ACLS][FLD_ITEM] as $acl) { // skip disabled acl if ($acls[FLD_DISABLED]) continue; $acl_name = $acl[FLD_NAME]; // check acl name for unique and exists (as source items) if ($acl_name and !$key_sources[$acl_name]) $check_log[] = "ACL '$acl_name' error: acl name '$acl_name' not found"; $acls[] = $acl_name; $key_acls = array_count_values($acls); if ($key_acls[$acl_name] > 1) $check_log[] = "ACL '$acl_name' error: duplicate acl name '$acl_name'"; // check time $time = $acl[FLD_TIMENAME]; if ($time and !$key_times[$time]) // time name must exists $check_log[] = "ACL '$acl_name' error: time name '$time' not found"; // check destinations if ($acl[FLD_DESTINATIONNAME]) { $acldest = str_replace("!", "", $acl[FLD_DESTINATIONNAME]); $acldest = explode(" ", $acldest); $key_acldest = array_count_values($acldest); foreach($acldest as $adest) { // check duplicates destinations in acl if ($key_acldest[$adest] > 1) $check_log[] = "ACL '$acl_name' error: duplicate destination name '$adest'. Any destination must included once."; // check destinations for exists if ($adest and ($adest != 'all') and ($adest != 'none') and !$key_destinations[$adest]) $check_log[] = "ACL '$acl_name' error: destination name '$adest' not found"; } } else { $check_log[] = "ACL '$acl_name' error: ontime pass list is empty."; } // check overtime destinations if ($time) { if ($acl[FLD_OVERDESTINATIONNAME]) { $acloverdest = str_replace("!", "", $acl[FLD_OVERDESTINATIONNAME]); $acloverdest = explode(" ", $acloverdest); $key_acloverdest = array_count_values($acloverdest); foreach($acloverdest as $adest) { // check duplicates destinations in acl if ($key_acloverdest[$adest] > 1) $check_log[] = "ACL '$acl_name' error: duplicate overtime destination name '$adest'. Any destination must included once."; // check destinations for exists if ($adest and ($adest != 'all') and ($adest != 'none') and !$key_destinations[$adest]) $check_log[] = "ACL '$acl_name' error: overtime destination name '$adest' not found"; } } else { $check_log[] = "ACL '$acl_name' error: overtime pass list is empty."; } } // check rewrite $rew = $acl[FLD_REWRITENAME]; if ($rew and !$key_rewrites[$rew]) $check_log[] = "ACL '$acl_name' error: rewrite name '$rew' not found"; // check overtime rewrite $overrew = $acl[FLD_OVERREWRITENAME]; if ($time and $overrew and !$key_rewrites[$overrew]) $check_log[] = "ACL '$acl_name' error: overtime rewrite name '$overrew' not found"; // check redirect $redir = $acl[FLD_REDIRECT]; $overredir = $acl[FLD_OVERREDIRECT]; } } // --- Default --- if ($squidguard_config[FLD_ACLS]) { $def = $squidguard_config[FLD_DEFAULT]; // check time $time = $def[FLD_TIMENAME]; if ($time and !$key_times[$time]) // time name must exists $check_log[] = "ACL 'default' error: time name '$time' not found"; // check destinations if ($def[FLD_DESTINATIONNAME]) { $defdest = str_replace("!", "", $def[FLD_DESTINATIONNAME]); $defdest = explode(" ", $defdest); $key_defdest = array_count_values($defdest); foreach($defdest as $adest) { // check duplicates destinations in acl if ($key_defdest[$adest] > 1) $check_log[] = "ACL 'default' error: duplicate destination name '$adest'. Any destination must included once."; // check destinations for exists if ($adest and ($adest != 'all') and ($adest != 'none') and !$key_destinations[$adest]) $check_log[] = "ACL 'default' error: destination name '$adest' not found"; } } else { $check_log[] = "ACL 'default' error: ontime pass list is empty."; } // check rewrite $rew = $def[FLD_REWRITENAME]; if ($rew and !$key_rewrites[$rew]) $check_log[] = "ACL 'default' error: rewrite name '$rew' not found"; // check overtime rewrite $overrew = $def[FLD_OVERREWRITENAME]; if ($time and $overrew and !$key_rewrites[$overrew]) $check_log[] = "ACL 'default' error: overtime rewrite name '$overrew' not found"; // check redirect $redir = $def[FLD_REDIRECT]; $overredir = $def[FLD_OVERREDIRECT]; } return implode("\n", $check_log); } // ============================================================================= // Blacklist // ============================================================================= // sg_reconfigure_blacklist($source_filename, $opt) // $source_filename - file name or url // $opt - option: // '' or 'local' - update from local file // 'url' - update from url // ----------------------------------------------------------------------------- function sg_reconfigure_blacklist($source_filename, $opt = '') { global $squidguard_config; $sf = trim($source_filename); $sf_contents = ''; sg_addlog("sg_reconfigure_blacklist: start "); // 1. check system sg_check_system(); // 2. upload sg_addlog("sg_reconfigure_blacklist: begin upload from '$sf'.", 1); if ($sf[0] === "/") { // local file - example '/tmp/blacklists.tar' if (file_exists($sf)) { $sf_contents = file_get_contents($sf); sg_addlog("sg_reconfigure_blacklist: get file '$sf'.", 1); } else { sg_addlog("sg_reconfigure_blacklist: ERROR: get file '$sf', file not found.", 2); return; } } // url else { sg_addlog("sg_reconfigure_blacklist: get url '$sf'.", 1); $sf_contents = sg_uploadfile_from_url($sf, BLK_LOCALFILE, $opt); } // 3. update if (empty($sf_contents)) { sg_addlog("sg_reconfigure_blacklist: ERROR: file content '$sf'.", 2); return; } // 4. save black list archive content to local file file_put_contents(BLK_LOCALFILE, $sf_contents); // 5. update blacklist sg_update_blacklist(BLK_LOCALFILE); // 6. rebuild db # sg_full_rebuild_db(); sg_addlog("sg_reconfigure_blacklist: end"); } # ------------------------------------------------------------------------------ # sg_update_blacklist - update blacklist from file # How it's work: # - unpack tar archive to temp dir # - copy subdir's tree to one-level temp DB # - copy unrebuilded temp db to work db (for user's can configure with new Blacklist) # - create Blacklist files listing and copy to values dir and temp DB dir # - background rebuild temp DB via sh script (longer proccess) and copy to work DB # ------------------------------------------------------------------------------ function sg_update_blacklist($from_file) { global $squidguard_config; $dbhome = SQUIDGUARD_DBHOME_DEF; $workdir = SQUIDGUARD_WORKDIR_DEF; $tmp_unpack_dir = SQUIDGUARD_TMP . SQUIDGUARD_BL_UNPACK; $arc_db_dir = SQUIDGUARD_VAR . SG_BLK_ARC; sg_addlog("sg_update_blacklist: begin."); if (file_exists($from_file)) { // check work and DB dir's if (file_exists($squidguard_config[FLD_DBHOME])) $dbhome = $squidguard_config[FLD_DBHOME]; if (file_exists($squidguard_config[FLD_WORKDIR])) $workdir = $squidguard_config[FLD_WORKDIR]; // delete old tmp dir's if (file_exists($tmp_unpack_dir)) mwexec("rm -R . $tmp_unpack_dir"); if (file_exists($arc_db_dir)) mwexec("rm -R . $arc_db_dir"); // create new tmp/arc dir's mwexec("mkdir -p -m 0750 $tmp_unpack_dir"); mwexec("mkdir -p -m 0750 $arc_db_dir"); // unpack archive mwexec("tar zxvf $from_file -C $tmp_unpack_dir"); set_file_access($tmp_unpack_dir, OWNER_NAME, 0750); sg_addlog("sg_update_blacklist: Unpack uploaded file '$from_file' -> '$tmp_unpack_dir'.", 1); // 2. copy blacklist to squidGuard base & create entries list if (file_exists($tmp_unpack_dir)) { $blk_items = array(); $blk_list = array(); // scan blacklist items scan_blacklist_cat($tmp_unpack_dir, "blk", & $blk_items); // modify blacklist catalog structure to 'one level' foreach ($blk_items as $key => $val) { $current_dbpath = "$arc_db_dir/$key"; if (count($val)) { // make blk_list for config file $blk_list[$key] = $key; // delete '$current_dbpath' for correct moving // need moving $val['path'] to $current_dbpath // if $current_dbpath exists, // then $val['path'] will created as subdir - !it's worng! if (file_exists($current_dbpath)) mwexec("rm -R $current_dbpath"); mwexec("mv -f {$val['path']}/ $current_dbpath"); sg_addlog("sg_update_blacklist: Move {$val['path']}/ -> $current_dbpath.", 1); } } // copy unrebuilded blacklist to work DB mwexec("cp -R $arc_db_dir/ $dbhome"); // create entries list if (count($blk_items)) { $blklist_file = SQUIDGUARD_VAR . SQUIDGUARD_BLK_ENTRIES; // save to temp DB file_put_contents($blklist_file, implode("\n", array_keys($blk_items))); set_file_access ($blklist_file, OWNER_NAME, 0750); // save copy to squidGuard config dir $blklist_file = "{$squidguard_config[FLD_WORKDIR]}/" . SQUIDGUARD_BLK_ENTRIES; file_put_contents($blklist_file, implode("\n", array_keys($blk_items))); set_file_access ($blklist_file, OWNER_NAME, 0750); sg_addlog("sg_update_blacklist: create entries '$blklist_file'", 1); } set_file_access($arc_db_dir, OWNER_NAME, 0750); // make rebuild config; include all found dest items $conf_path = "/tmp/squidGuard_rebuild_blk.conf"; $conf = sg_create_rebuild_config($arc_db_dir, $blk_list); // copy to temp DB file_put_contents($conf_path, $conf); set_file_access($conf_path, OWNER_NAME, 0750); sg_addlog("sg_update_blacklist: Create temporary config '$conf_path'.", 1); // *** SH script *** $sh_scr = Array(); $sh_scr[] = "#!/bin/sh"; $sh_scr[] = "cd $arc_db_dir"; $cmd = $squidguard_config[FLD_BINPATH] . "/squidGuard -c $conf_path -C all"; $sh_scr[] = $cmd; $sh_scr[] = "wait"; // wait while SG rebuild DB // copy temp db to '/var/db/squidGuard (-R - recursive; -p - copy access rights) // '$bl_temp_dbhome/' - slash in end of path - copy only dir content (not self dir) $sh_scr[] = "cp -R $arc_db_dir/ $dbhome"; // set DB owner and right access # $sh_scr[] = "chown -R -v " . OWNER_NAME . " $dbhome"; // restart squid for changes to take effects # $sh_scr[] = "/usr/local/sbin/squid -k reconfigure"; // store & exec sh $sh_scr = implode("\n", $sh_scr); $shfile = DB_REBUILD_SH . "_blk"; file_put_contents($shfile, $sh_scr); set_file_access($shfile, OWNER_NAME, 0750); mwexec_bg($shfile); sg_addlog("sg_update_blacklist: started SH script '$shfile'.", 1); sg_remove_unused_db_entries(); // clearing temp # mwexec("rm -R $bl_temp"); } # set_file_access($squidguard_config[FLD_DBHOME], OWNER_NAME, 0755); # sg_full_rebuild_db(); } sg_addlog("sg_update_blacklist: end"); } // ----------------------------------------------------------------------------- // sg_blacklist_rebuild_DB - update blacklist from file // ----------------------------------------------------------------------------- function sg_entries_blacklist() { global $squidguard_config; $contents = ''; $fl = SQUIDGUARD_WORKDIR_DEF . SQUIDGUARD_BLK_ENTRIES; if (file_exists($squidguard_config[FLD_WORKDIR])) $fl = $squidguard_config[FLD_WORKDIR] . SQUIDGUARD_BLK_ENTRIES; if (file_exists($fl)) { $contents = file_get_contents($fl); $contents = explode("\n", $contents); } return $contents; } // ----------------------------------------------------------------------------- // sg_blacklist_rebuild_db - rebuild current Blacklist DB (default: '/var/db/squidGuard') // ----------------------------------------------------------------------------- function sg_blacklist_rebuild_db() { // $shtag, $rdb_dbhome, $rdb_workdir) { global $squidguard_config; $dst_list = array(); $dbhome = $squidguard_config[FLD_DBHOME]; $workdir = $squidguard_config[FLD_WORKDIR]; // current dbhome and work dir's # disabled in current ver # if (!empty($rdb_dbhome)) $dbhome = $rdb_dbhome; # if (!empty($rdb_workdir)) $workdir = $rdb_workdir; sg_addlog("sg_blacklist_rebuild_db: Begin with path '$dbhome'."); // make dest list $blklist_file = "$workdir/" . SQUIDGUARD_BLK_ENTRIES; if (file_exists($blklist_file)) { $blklist = explode("\n", file_get_contents($blklist_file)); if (is_array($blklist)) foreach($blklist as $bl) $dst_list[$bl] = $bl; } // rebuild user db ('/var/db/squidGuard') sg_rebuild_db("_blkdb", $dbhome, $dst_list); sg_addlog("sg_blacklist_rebuild_db: End."); } # ========================== UTILS ============================================= # sg_uploadfile_from_url # upload file and put them to $destination_file # return = upload content # ------------------------------------------------------------------------------ function sg_uploadfile_from_url($url_file, $destination_file, $proxy = '') { // open destination file sg_addlog("sg_uploadfile_from_url: begin url'$url_file' proxy'$proxy'"); $result = ''; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url_file); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); if (!empty($proxy)) { $ip = ''; $login = ''; $s = trim($proxy); if (strpos($s, ' ')) { $ip = substr($s, 0, strpos($s, ' ')); $login = substr($s, strpos($s, ' ') + 1); } else $ip = $s; if($ip != '') { curl_setopt($ch, CURLOPT_PROXY, $ip); if($login != '') curl_setopt($ch, CURLOPT_PROXYUSERPWD, $login); } } $result=curl_exec ($ch); curl_close ($ch); if (!empty($destination_file)) file_put_contents($destination_file, $result); else sg_addlog("sg_uploadfile_from_url: error upload file"); // for test file_put_contents(BLK_LOCALFILE, $result); sg_addlog("sg_uploadfile_from_url: end"); return $result; } # ============================================================================== # self utils # ============================================================================== # Set file access # ------------------------------------------------------------------------------ function set_file_access($dir, $owner, $mod) { if (!file_exists($dir)) return; chown($dir, $owner); chgrp($dir, $owner); chmod($dir, $mod); // if $dir - directory - set subitem's access if (is_dir($dir)) { $hd = opendir($dir); while (($item = readdir($hd)) !== false) { if (($item != ".") && ($item != "..")) { $path = "$dir/$item"; if (is_dir($path)) set_file_access($path, $owner, $mod); else { chown($path, $owner); chgrp($path, $owner); chmod($path, $mod); } } } } } # ------------------------------------------------------------------------------ # scan_dir - build files listing for $dir # ------------------------------------------------------------------------------ function scan_dir($dir) { $files = array(); if (file_exists($dir)) { $dh = opendir($dir); while (false !== ($filename = readdir($dh))) { // skip '.' and '..' names if (($filename !== '.') and ($filename !== '..')) $files[] = $filename; } sort($files); } return $files; } # ------------------------------------------------------------------------------ # scan_blacklist_cat - scan all dirs and subdirs tree and make blk enrties list # $cur_dir - start directory # $key_name - current key name # ------------------------------------------------------------------------------ # blk entry[key]: # ["domains"] domains file path # ["urls"] urls file path # ["expressions"] expressions file path # ------------------------------------------------------------------------------ function scan_blacklist_cat($curdir, $key_name, $cat_array) { if (file_exists($curdir) and is_dir($curdir)) { $blk_entry = array(); $files = scan_dir($curdir); foreach($files as $fls) { $fls_file = "$curdir/$fls"; if (($fls != ".") and ($fls != "..")) { if (is_file($fls_file)) { // add files path switch(strtolower($fls)) { case "domains": $blk_entry["domains"] = $fls_file; $blk_entry["path"] = $curdir; break; case "urls": $blk_entry["urls"] = $fls_file; $blk_entry["path"] = $curdir; break; case "expressions": $blk_entry["expressions"] = $fls_file; $blk_entry["path"] = $curdir; break; } } elseif (is_dir($fls_file)) { $fls_key = $key_name . "_" . $fls; // recursive call scan_blacklist_cat($fls_file, $fls_key, & $cat_array); } } } if (count($blk_entry)) $cat_array[$key_name] = $blk_entry; } } # ------------------------------------------------------------------------------ # is_url - check url an err_codes # ------------------------------------------------------------------------------ function is_url($url) { if (empty($url)) return false; if (eregi("^http://", $url)) return true; if (eregi("^https://", $url)) return true; if (strstr("blank", $url)) return true; if (strstr("blank_img", $url)) return true; if (eregi("^((30[1235]{1})|(40[0-9]{1})|(41[0-7]{1})|(50[0-5]{1}))", $url)) return true; // http error code 30x, 4xx, 50x. return false; } # ------------------------------------------------------------------------------ # check name # ------------------------------------------------------------------------------ function check_name ($name) { $err = ''; $val = trim($name); if ((strlen($val) < 2) || (strlen($val) > 16)) $err .= " Size of name must be between [2..16]."; // All symbols must be [a-zA-Z_0-9\-] First symbol = letter. if (!eregi("^([a-zA-Z]{1})([a-zA-Z_0-9\-]+)$", $val)) $err .= " Invalid name $name. Valid name symbols: ['a-Z', '_', '0-9', '-']. First symbol must be a letter."; return $err; } ?>