Copyright (C) 2011-2013 Marcello Coutinho Copyright (C) 2012 Marcio Carlos Antao All rights reserved. */ /* ========================================================================== */ /* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* ========================================================================== */ $shortcut_section = "varnish"; $pf_version=substr(trim(file_get_contents("/etc/version")),0,3); if ($pf_version > 2.0) define('VARNISH_LOCALBASE', '/usr/pbi/varnish-' . php_uname("m")); else define('VARNISH_LOCALBASE','/usr/local'); function varnish_settings_post_validate($post, $input_errors) { if( !is_numeric($post['storagesize'])) $input_errors[] = "A valid number is required for the field 'Storage size'"; if($post['listeningport'] && !is_numeric($post['listeningport'])) $input_errors[] = "A valid number is required for the field 'Listening port'"; if($post['minworkers'] && !is_numeric($post['minworkers'])) $input_errors[] = "A valid number is required for the field 'Minimum worker threads'"; if($post['maxworkers'] && !is_numeric($post['maxworkers'])) $input_errors[] = "A valid number is required for the field 'Maximum worker threads'"; if($post['timeoutworkers'] && !is_numeric($post['timeoutworkers'])) $input_errors[] = "A valid number is required for the field 'Worker thread timeout'"; if($post['managment']){ $mgm= explode(":",$post['managment']); if(!is_ipaddr($mgm[0]) || !is_numeric($mgm[1])) $input_errors[] = "A valid ip:port is required for the field 'managment'"; } if($post['grace'] && ! preg_match("/^\d+(h|m|s)$/",$post['grace'])) $input_errors[] = "A valid number with a time reference is required for the field 'Fetch grace'"; if($post['saint'] && ! preg_match("/^\d+(h|m|s)$/",$post['saint'])) $input_errors[] = "A valid number with a time reference is required for the field 'Saint mode'"; } function varnish_lb_directors_post_validate($post, $input_errors) { if (preg_match("/[^a-zA-Z0-9]/", $post['directorname'])){ $input_errors[] = "The directorname name must only contain the characters a-Z or 0-9"; } else{ if(empty($post['failover'])) $_POST['failover'] = $post['directorname']; } if(stristr($post['directorurl'], 'http')) $input_errors[] = "You do not need to include the http:// string in the director URL"; if($post['grace'] && ! preg_match("/^\d+(h|m|s)$/",$post['grace'])) $input_errors[] = "A valid number with a time reference is required for the field 'Req grace'"; } function varnish_backends_post_validate($post, $input_errors) { if (!$post['backendname'] || preg_match("/[^a-zA-Z0-9]/", $post['backendname'])) $input_errors[] = "The backend name must only contain the characters a-Z or 0-9"; if(!is_ipaddr($post['ipaddress'])) $input_errors[] = "A valid IP address is required for the field 'IPAddress'"; if($post['first_byte_timeout'] && !is_numeric($post['first_byte_timeout'])) $input_errors[] = "A valid number is required for the field 'first byte timeout'"; if($post['connect_timeout'] && !is_numeric($post['connect_timeout'])) $input_errors[] = "A valid number is required for the field 'connect timeout'"; if($post['probe_interval'] && !is_numeric($post['probe_interval'])) $input_errors[] = "A valid number is required for the field 'probe interval'"; if($post['probe_interval'] && !is_numeric($post['probe_interval'])) $input_errors[] = "A valid number is required for the field 'probe interval'"; if($post['probe_timeout'] && !is_numeric($post['probe_timeout'])) $input_errors[] = "A valid number is required for the field 'probe timeout'"; if($post['probe_window'] && !is_numeric($post['probe_window'])) $input_errors[] = "A valid number is required for the field 'probe window'"; if($post['probe_threshold'] && !is_numeric($post['probe_threshold'])) $input_errors[] = "A valid number is required for the field 'probe threshold'"; $x=0; while ($post['maptype'.$x] != ""){ if($post['grace'.$x] && ! preg_match("/^\d+(h|m|s)$/",$post['grace'.$x])){ $input_errors[] = "A valid number with a time reference is required for the field 'grace' in map ".($x +1); } $x++; } } function varnish_install() { create_varnish_rcd_file(); } function varnish_deinstall() { create_varnish_rcd_file(); } function text_area_decode($text){ return preg_replace('/\r\n/', "\n",base64_decode($text)); } function varnish_start() { global $g, $config; if ($config['installedpackages']['varnishsettings']['config'][0]['enablevarnish']){ exec("chmod +x /usr/local/etc/rc.d/varnish.sh"); mwexec("/usr/local/etc/rc.d/varnish.sh");} else{ exec("chmod -x /usr/local/etc/rc.d/varnish.sh"); mwexec("/usr/bin/killall varnishd");} } /* Build the URL mappings logic VCL config txt */ function varnish_get_url_mappings_txt() { global $g, $config, $urlmappings,$backends_in_use; $catch_all = "unset"; $isfirst = true; if ($config['installedpackages']['varnishlbdirectors']['config'] != "") { foreach($config['installedpackages']['varnishlbdirectors']['config'] as $url) { // check options $directo_grace_time = ""; if ($url['customapping']) $directo_grace_time .= text_area_decode($url['customapping'])."\n\t\t"; if ($url['grace']) $directo_grace_time .= ($url['grace'] == "0s" ? "return(pass);" : "set req.grace={$url['grace']};"); $fieldtype = ($url['fieldtype'] ? $url['fieldtype'] : "=="); $director_prefix = ($url['directorurl'] && $url['directorurl2'] ? "^http://" : ""); // check url if ($url['directorurl'] || $url['directorurl2'] || $catch_all == "unset") { if ($url['directorurl'] == "" && $url['directorurl2'] == "") { // director with no host or url, so director for catch all traffic not specified in config $lasturlmappings = "\telse\t{\n\t\tset req.backend = {$url['directorname']};\n\t\t}\n"; $catch_all = "set"; $isfirst = false; } else { if (!$isfirst) $urlmappings .= "\telse "; if (!$url['directorurl']) $urlmappings .= "if (req.url $fieldtype ".'"^'.$url['directorurl2'].'") {'."\n"; else if (!$url['directorurl2']) $urlmappings .= "if (req.http.host $fieldtype ".'"'.$url['directorurl'].'") {'."\n"; else $urlmappings .= "if (req.http.host $fieldtype ".'"'.$url['directorurl'].'"'." && req.url $fieldtype ".'"^'.$url['directorurl2'].'") {'."\n"; $urlbackend = "\t\t\tset req.backend = ".$url['directorname'].";"; // check rewrite options if ($url['rewritehost']) $urlmappings .= "\t\t\tset req.http.host = regsub(req.http.host, ".'"'.$url['directorurl'].'",'.'"'.$url['rewritehost'].'")'.";\n"; if ($url['rewriteurl']) $urlmappings .= "\t\t\tset req.url = regsub(req.url, ".'"'.$url['directorurl2'].'",'.'"^'.$url['rewriteurl'].'")'.";\n"; // check failover if ($url['failover'] && $url['failover'] != $url['directorname']) { $tabs = ($url['grace'] ? "\n\t\t\t" : ""); $urlfailover = "\t\t\tset req.backend = ".$url['failover'].";"; $urlmappings .= "\t\tif (req.restarts == 0) {\n".$urlbackend.$tabs.$directo_grace_time.$tabs."}"; $urlmappings .= "\n\t\telse\t{\n".$urlfailover.$tabs.$directo_grace_time.$tabs."}\n\t\t}\n"; $isfirst = false; } else { $tabs = ($url['grace'] ? "\n\t\t" : ""); $urlmappings .= $urlbackend.$tabs.$directo_grace_time."\n\t\t}\n"; $isfirst = false; } } } } } if ($config['installedpackages']['varnishbackends']['config']) { foreach($config['installedpackages']['varnishbackends']['config'] as $urlmapping) { if (isset($urlmapping['row'])) { foreach($urlmapping['row'] as $url) { $directo_grace_time = ""; if ($url['grace']) $directo_grace_time = ($url['grace'] == "0s" ? "\n\t\t return(pass);" : "\n\t\tset req.grace={$url['grace']};"); $req = ($url['maptype'] ? $url['maptype'] : "http.host"); $fieldtype = ($url['fieldtype'] ? $url['fieldtype'] : "=="); if ($url['urlmapping'] != "" || $catch_all == "unset") { if ($url['urlmapping'] == "") { $catch_all = "set"; $lasturlmappings .= "set req.backend = {$urlmapping['backendname']}BACKEND;\n"; } else { if (!$isfirst) $urlmappings .= "\telse "; $urlmappings .= <</dev/null killall varnishd 2>/dev/null sleep 1 sysctl kern.ipc.somaxconn=16384 sysctl kern.maxfiles=131072 sysctl kern.maxfilesperproc=104856 sysctl kern.threads.max_threads_per_proc=4096 /usr/bin/env \ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin \ /usr/local/bin/php -q -d auto_prepend_file=config.inc < ENDOFF /usr/local/sbin/varnishd \ {$listeningport} \ -f /var/etc/default.vcl \ {$storage_type} \ -w {$minworkers},{$maxworkers},{$timeoutworkers} \ {$advancedstartup} EOF; fwrite($fd, $rc_file); fclose($fd); exec("chmod a+rx /usr/local/etc/rc.d/varnish.sh"); } function get_backend_config_txt() { global $config, $g, $backends_in_use; $backends = ""; if ($config['installedpackages']['varnishbackends']['config'] != "") { foreach($config['installedpackages']['varnishbackends']['config'] as $backend) { if ($backend['connect_timeout']) $connect_timeout = $backend['connect_timeout'] . "s"; else $connect_timeout = "25s"; if ($backend['port']) $connect_port = $backend['port']; else $connect_port = "80"; if ($backend['first_byte_timeout']) $first_byte_timeout = $backend['first_byte_timeout'] . "s"; else $first_byte_timeout = "300s"; if ($backend['probe_url']) if (preg_match("@^(http)://([a-zA-Z0-9.-]*)/(.*)$@",$backend['probe_url'],$matches)){ $probe_url = ".request =\n"; $probe_url .= "\t\t\t".'"GET /'.$matches[3].' HTTP/1.1"'."\n"; $probe_url.="\t\t\t".'"Accept: text/*"'."\n"; $probe_url.="\t\t\t".'"User-Agent: Varnish"'."\n"; $probe_url .= "\t\t\t".'"Host: '.$matches[2].'"'."\n"; $probe_url .= "\t\t\t".'"Connection: Close";'; } else $probe_url = '.url = "'.$backend['probe_url'].'";'; else $probe_url = '.url = "/";'; if ($backend['probe_interval']) $probe_interval = $backend['probe_interval'] . "s"; else $probe_interval = "1s"; if ($backend['probe_timeout']) $probe_timeout = $backend['probe_timeout'] . "s"; else $probe_timeout = "1s"; if ($backend['probe_window']) $probe_window = $backend['probe_window']; else $probe_window = "5"; if ($backend['probe_threshold']) $probe_threshold = $backend['probe_threshold']; else $probe_threshold = "5"; if ($backend['probe_disable']) $probe = ""; else { $probe = << "} + obj.status + " " + obj.response + {"

Error "} + obj.status + " " + obj.response + {"

"} + obj.response + {"

Guru Meditation:

XID: "} + req.xid + {"


Varnish cache server

138 EOF; /* Grab configuration txt blocks */ /* Please keep this sequence to determine witch backends are in use */ $backends_in_use = array(); $lb_config= get_lb_directors_config_txt(); $urlmappings = varnish_get_url_mappings_txt(); $backends = get_backend_config_txt() . $lb_config ; #$backends .= get_lb_directors_config_txt(); /* Start to build varnish default.vcl configurationf file */ $varnish_config_file = << {$errorvcl}"}; return(deliver); } {$backends} {$vcl_hash} sub vcl_recv { {$vcl_recv_early} {$vcl_recv_set_basic} {$urlmappings} {$vcl_recv_late} #respect client wish to refresh the page if (req.http.Pragma ~ "no-cache") { return(pass); } {$vcl_recv_action_basic} return(lookup); } sub vcl_pipe { {$vcl_pipe_early} # If we don't set the Connection: close header, any following # requests from the client will also be piped through and # left untouched by varnish. We don't want that. set req.http.connection = "close"; # Note: no "pipe" action here - we'll fall back to the default # pipe method so that when any changes are made there, we # still inherit them. {$vcl_pipe_late} } sub vcl_hit { return (deliver); } sub vcl_miss { return (fetch); } sub vcl_fetch { {$vcl_fetch_stream}{$vcl_fetch_early} {$vcl_fetch_action} # Varnish respects the wishes of the backend application. if (beresp.http.Pragma ~ "no-cache" || beresp.http.Cache-Control ~ "(no-cache|no-store|private)") { return(hit_for_pass); } ## If the request to the backend returns a code other than 200, restart the loop ## If the number of restarts reaches the value of the parameter max_restarts, ## the request will be error'ed. max_restarts defaults to 4. This prevents ## an eternal loop in the event that, e.g., the object does not exist at all. if (beresp.status != 200 && beresp.status != 403 && beresp.status != 404 && beresp.status != 303 && beresp.status != 302 && beresp.status != 301 && beresp.status != 401 ) { {$vcl_saint_mode}return(restart); } {$vcl_fetch_late} {$vcl_grace_time}return(deliver); } sub vcl_deliver { ##set resp.http.X-Served-By = server.hostname; if (obj.hits > 0) { set resp.http.X-Cache = "HIT"; set resp.http.X-Cache-Hits = obj.hits; } else { set resp.http.X-Cache = "MISS"; } return(deliver); } sub vcl_init { return (ok); } sub vcl_fini { return (ok); } EOF; file_put_contents("/var/etc/default.vcl",$varnish_config_file,LOCK_EX); $cc_file="/usr/local/bin/cc"; foreach (glob(VARNISH_LOCALBASE."/bin/gcc*") as $bin_file) { $gcc_file=$bin_file; } if (!file_exists($cc_file) && file_exists($gcc_file)){ symlink($gcc_file,$cc_file); } $fd = fopen("/var/etc/default.vcl", "w"); fwrite($fd, $varnish_config_file); fclose($fd); varnish_sync_on_changes(); } /* Uses XMLRPC to synchronize the changes to a remote node */ function varnish_sync_on_changes() { global $config, $g; if (is_array($config['installedpackages']['varnishsync']['config'])){ $varnish_sync=$config['installedpackages']['varnishsync']['config'][0]; $synconchanges = $varnish_sync['synconchanges']; $synctimeout = $varnish_sync['synctimeout']; switch ($synconchanges){ case "manual": if (is_array($varnish_sync[row])){ $rs=$varnish_sync[row]; } else{ log_error("[varnish] xmlrpc sync is enabled but there is no hosts to push on varnish config."); return; } break; case "auto": if (is_array($config['hasync'])){ $hasync=$config['hasync']; $rs[0]['ipaddress']=$hasync['synchronizetoip']; $rs[0]['username']=$hasync['username']; $rs[0]['password']=$hasync['password']; } else{ log_error("[varnish] xmlrpc sync is enabled but there is no system backup hosts to push varnish config."); return; } break; default: return; break; } if (is_array($rs)){ log_error("[varnish] xmlrpc sync is starting."); foreach($rs as $sh){ $sync_to_ip = $sh['ipaddress']; $password = $sh['password']; if($sh['username']) $username = $sh['username']; else $username = 'admin'; if($password && $sync_to_ip) varnish_do_xmlrpc_sync($sync_to_ip, $username, $password,$synctimeout); } log_error("[varnish] xmlrpc sync is ending."); } } } /* Do the actual XMLRPC sync */ function varnish_do_xmlrpc_sync($sync_to_ip, $username, $password,$synctimeout) { global $config, $g; if(!$username) return; if(!$password) return; if(!$sync_to_ip) return; if(!$synctimeout) $synctimeout=25; $xmlrpc_sync_neighbor = $sync_to_ip; if($config['system']['webgui']['protocol'] != "") { $synchronizetoip = $config['system']['webgui']['protocol']; $synchronizetoip .= "://"; } $port = $config['system']['webgui']['port']; /* if port is empty lets rely on the protocol selection */ if($port == "") { if($config['system']['webgui']['protocol'] == "http") $port = "80"; else $port = "443"; } $synchronizetoip .= $sync_to_ip; /* xml will hold the sections to sync */ $xml = array(); $xml['varnishcustomvcl'] = $config['installedpackages']['varnishcustomvcl']; $xml['varnishbackends'] = $config['installedpackages']['varnishbackends']; $xml['varnishlbdirectors'] = $config['installedpackages']['varnishlbdirectors']; $xml['varnishsettings'] = $config['installedpackages']['varnishsettings']; /* assemble xmlrpc payload */ $params = array( XML_RPC_encode($password), XML_RPC_encode($xml) ); /* set a few variables needed for sync code borrowed from filter.inc */ $url = $synchronizetoip; log_error("Beginning Varnish XMLRPC sync to {$url}:{$port}."); $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 $synctimeout seconds */ $resp = $cli->send($msg, $synctimeout); if(!$resp) { $error = "A communications error occurred while attempting varnish XMLRPC sync with {$url}:{$port}."; log_error($error); file_notice("sync_settings", $error, "varnish Settings Sync", ""); } elseif($resp->faultCode()) { $cli->setDebug(1); $resp = $cli->send($msg, $synctimeout); $error = "An error code was received while attempting varnish XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); log_error($error); file_notice("sync_settings", $error, "varnish Settings Sync", ""); } else { log_error("varnish XMLRPC sync successfully completed with {$url}:{$port}."); } /* tell varnish to reload our settings on the destionation sync host. */ $method = 'pfsense.exec_php'; $execcmd = "require_once('/usr/local/pkg/varnish.inc');\n"; $execcmd .= "sync_package_varnish();\nvarnish_start();"; /* assemble xmlrpc payload */ $params = array( XML_RPC_encode($password), XML_RPC_encode($execcmd) ); log_error("varnish XMLRPC reload data {$url}:{$port}."); $msg = new XML_RPC_Message($method, $params); $cli = new XML_RPC_Client('/xmlrpc.php', $url, $port); $cli->setCredentials($username, $password); $resp = $cli->send($msg, $synctimeout); if(!$resp) { $error = "A communications error occurred while attempting varnish XMLRPC sync with {$url}:{$port} (pfsense.exec_php)."; log_error($error); file_notice("sync_settings", $error, "varnish Settings Sync", ""); } elseif($resp->faultCode()) { $cli->setDebug(1); $resp = $cli->send($msg, $synctimeout); $error = "An error code was received while attempting varnish XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); log_error($error); file_notice("sync_settings", $error, "varnish Settings Sync", ""); } else { log_error("varnish XMLRPC reload data success with {$url}:{$port} (pfsense.exec_php)."); } } ?>