forked from dtouzeau/artica-1.5
/
exec.artica-filter-daemon.php
executable file
·495 lines (395 loc) · 16.1 KB
/
exec.artica-filter-daemon.php
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<?php
$GLOBALS["DEBUG_INCLUDES"]=false;
$GLOBALS["LOCAL_DOMAINS"]=array();
$GLOBALS["INTERNAL_FROM"]=array();
$GLOBALS["CACHE"]=array();
$GLOBALS["VERBOSE"]=false;
$GLOBALS["DEBUG"]=false;
$GLOBALS["VERBOSE_MASTER"]=false;
$GLOBALS["LOGON-PAGE"]=false;
define(MSG_QUOTA, "Quota exceed: The user to whom this message was addressed has exceeded " .
"the allowed account quota. Please resend the message at a later time.");
include_once(dirname(__FILE__).'/ressources/class.templates.inc');
include_once(dirname(__FILE__).'/ressources/class.mysql.inc');
include_once(dirname(__FILE__).'/framework/frame.class.inc');
include_once(dirname(__FILE__).'/framework/class.unix.inc');
if(posix_getuid()<>0){die("Cannot be used in web server mode\n\n");}
$__server_listening = true;
//error_reporting(E_ALL);
$pidfile="/etc/artica-postfix/".basename(__FILE__).".pid";
$unix=new unix();
if($unix->process_exists(@file_get_contents($pidfile))){die();}
@file_put_contents("/tmp/".basename(__FILE__).".internal.from",serialize(array()));
set_time_limit(0);
ob_implicit_flush();
declare(ticks = 1);
$sock=new sockets();
$GLOBALS["DebugArticaFilter"]=$sock->GET_INFO("DebugArticaFilter");
PopulateMyDomains();
$pid=start_daemon();
events('Running PID 1) -> '.$pid,"MAIN");
@file_put_contents($pidfile,$pid);
pcntl_signal(SIGTERM,'sig_handler');
pcntl_signal(SIGINT, 'sig_handler');
pcntl_signal(SIGCHLD,'sig_handler');
pcntl_signal(SIGHUP, 'sig_handler');
server_loop("127.0.0.1", 54423);
function server_loop($address, $port){
GLOBAL $__server_listening;
// AF_UNIX AF_INET
if(($sock = socket_create(AF_INET, SOCK_STREAM, 0)) < 0){
events("failed to create socket: ".socket_strerror($sock),__FUNCTION__,__LINE__);
exit();
}
if(($ret = socket_bind($sock, $address, $port)) < 0){
events("failed to bind socket: ".socket_strerror($ret),__FUNCTION__,__LINE__);
exit();
}
if( ( $ret = socket_listen( $sock, 0 ) ) < 0 ){
events("failed to listen to socket: ".socket_strerror($ret),__FUNCTION__,__LINE__);
exit();
}
socket_set_nonblock($sock);
events(count($GLOBALS["LOCAL_DOMAINS"]). " internals domains...",__FUNCTION__,__LINE__);
events("waiting for clients to connect",__FUNCTION__,__LINE__);
while ($__server_listening){
$connection = @socket_accept($sock);
if ($connection === false){
if($GLOBALS["DebugArticaFilter"]==1){events("sleep",__FUNCTION__,__LINE__);}
usleep(2000000);
}elseif ($connection > 0){
handle_client($sock, $connection);
}else{
events("error: ".socket_strerror($connection),__FUNCTION__,__LINE__);
die;
}
}
}
function handle_client($ssock, $csock){
GLOBAL $__server_listening;
$pid = pcntl_fork();
events("Fork pid $pid",__FUNCTION__,__LINE__);
if(!isset($GLOBALS["DebugArticaFilter"])){
$sock=new sockets();
$GLOBALS["DebugArticaFilter"]=$sock->GET_INFO("DebugArticaFilter");
if($GLOBALS["DebugArticaFilter"]==null){$GLOBALS["DebugArticaFilter"]=0;}
}
if ($pid == -1){
/* fork failed */
events("fork failure!",__FUNCTION__,__LINE__);
die;
}elseif ($pid == 0){
/* child process */
$__server_listening = false;
socket_close($ssock);
interact($csock);
events("Closing connection",__FUNCTION__,__LINE__);
socket_close($csock);
}else{
socket_close($csock);
}
}
/*protocol_state=RCPT
protocol_name=SMTP
client_address=192.168.1.240
client_name=unknown
reverse_client_name=unknown
helo_name=toto
sender=ddd@ttt.com
recipient=mense@touzeau.bu
recipient_count=0
queue_id=
instance=241.4cbe0108.a7283.0
size=0
etrn_domain=
stress=
sasl_method=
sasl_username=
sasl_sender=
ccert_subject=
ccert_issuer=
ccert_fingerprint=
encryption_protocol=
encryption_cipher=
encryption_keysize=0
*/
function interact($socket){
$sock=new sockets();
//protocol_state=END-OF-MESSAGE,RCPT
// PHP_NORMAL_READ PHP_BINARY_READ
$buffer=@socket_read($socket,2000,PHP_BINARY_READ);
if(!isset($GLOBALS["DebugArticaFilter"])){
$GLOBALS["DebugArticaFilter"]=$sock->GET_INFO("DebugArticaFilter");
if($GLOBALS["DebugArticaFilter"]==null){$GLOBALS["DebugArticaFilter"]=0;}
}
$GLOBALS["PostfixNotifyMessagesRestrictions"]=$sock->GET_INFO("PostfixNotifyMessagesRestrictions");
$GLOBALS["ArticaPolicyFilterMaxRCPTInternalDomainsOnly"]=$sock->GET_INFO("ArticaPolicyFilterMaxRCPTInternalDomainsOnly");
if(!is_numeric($GLOBALS["ArticaPolicyFilterMaxRCPTInternalDomainsOnly"])){$GLOBALS["ArticaPolicyFilterMaxRCPTInternalDomainsOnly"]=0;}
if(!is_numeric($GLOBALS["PostfixNotifyMessagesRestrictions"])){$GLOBALS["PostfixNotifyMessagesRestrictions"]=0;}
$tbl=explode("\n",$buffer);
if($GLOBALS["DebugArticaFilter"]==1){events(count($tbl)." lines",__FUNCTION__,__LINE__);}
while (list ($num, $ligne) = each ($tbl) ){
if(preg_match("#(.+?)=(.+)#",$ligne,$re)){
if($re[1]=="recipient"){
$GLOBALS["RECIPIENTS"][]=$re[2];
if($GLOBALS["DebugArticaFilter"]==1){events("To: {$re[2]}",__FUNCTION__,__LINE__);}
}
if($GLOBALS["DebugArticaFilter"]==1){events("{$re[1]}:{$re[2]}",__FUNCTION__,__LINE__);}
$base[trim($re[1])]=trim($re[2]);
}
}
$GLOBALS["BASE"]=$base;
$GLOBALS["protocol_state"]=$base["protocol_state"];
if($GLOBALS["DebugArticaFilter"]==1){events("Loading caches",__FUNCTION__,__LINE__);}
$GLOBALS["LOCAL_DOMAINS"]=unserialize(@file_get_contents("/tmp/".basename(__FILE__).".domains"));
$GLOBALS["CACHE"]=unserialize(@file_get_contents("/tmp/".basename(__FILE__).".cache"));
$GLOBALS["INTERNAL_FROM"]=unserialize(@file_get_contents("/tmp/".basename(__FILE__).".internal.from"));
$GLOBALS["QUEUES"]=unserialize(@file_get_contents("/tmp/".basename(__FILE__).".cache.queues"));
if(count($GLOBALS["QUEUES"])>500){unset($GLOBALS["QUEUES"]);}
/*if(CheckMAXRcptto()){
socket_write($socket, "action=451 Sorry, your message has too many recipients\n");
socket_write($socket, "\n");
unset($GLOBALS["QUEUES"][$GLOBALS["BASE"]["instance"]]);
writeMem();
return;
}*/
if($GLOBALS["protocol_state"]<>"END-OF-MESSAGE"){
writeMem();
socket_write($socket, "action=DUNNO\n");
socket_write($socket, "\n");
return;
}
if($GLOBALS["DebugArticaFilter"]==1){events("running -> BlockQuotaFrom()",__FUNCTION__,__LINE__);}
if(BlockQuotaFrom($base["sender"],$base["recipient"],$base["size"])){
if($GLOBALS["DebugArticaFilter"]==1){events("Return 552",__FUNCTION__,__LINE__);}
socket_write($socket, "action=552 " . MSG_QUOTA . "\n");
socket_write($socket, "\n");
if($GLOBALS["DebugArticaFilter"]==1){events("running -> writeMem()",__FUNCTION__,__LINE__);}
writeMem();
if($GLOBALS["DebugArticaFilter"]==1){events("running -> point_events()",__FUNCTION__,__LINE__);}
point_events($base["queue_id"],$base["client_address"],$base["sender"],$base["recipient"],"Over Quota",$base["size"]);
if($GLOBALS["DebugArticaFilter"]==1){events("finish",__FUNCTION__,__LINE__);}
return;
}
if($GLOBALS["DebugArticaFilter"]==1){events("running -> writeMem()",__FUNCTION__,__LINE__);}
writeMem();
socket_write($socket, "action=DUNNO\n");
socket_write($socket, "\n");
if($GLOBALS["DebugArticaFilter"]==1){events("running -> point_events()",__FUNCTION__,__LINE__);}
point_events($base["queue_id"],$base["client_address"],$base["sender"],$base["recipient"],null,$base["size"]);
if($GLOBALS["DebugArticaFilter"]==1){events("finish",__FUNCTION__,__LINE__);}
}
function CheckMAXRcptto(){
if($GLOBALS["protocol_state"]<>"RCPT"){
if($GLOBALS["DebugArticaFilter"]==1){
events("protocol_state :{$GLOBALS["protocol_state"]}, return",__FUNCTION__,__LINE__);
}
return;
}
if($GLOBALS["PostfixNotifyMessagesRestrictions"]==0){return;}
$queue_id=$GLOBALS["BASE"]["instance"];
$recipient=$GLOBALS["BASE"]["recipient"];
$GLOBALS["QUEUES"][$GLOBALS["BASE"]["instance"]]["recipients"][]=$recipient;
@file_put_contents("/tmp/".basename(__FILE__).".cache.queues",serialize($GLOBALS["QUEUES"]));
if($GLOBALS["DebugArticaFilter"]==1){events("RCPT: $queue_id: ".implode(",",$GLOBALS["QUEUES"][$queue_id]["recipients"]),__FUNCTION__,__LINE__);}
$recipients=$GLOBALS["QUEUES"][$GLOBALS["BASE"]["instance"]]["recipients"];
if($GLOBALS["ArticaPolicyFilterMaxRCPTInternalDomainsOnly"]==0){
if(count($recipients)>=$GLOBALS["PostfixNotifyMessagesRestrictions"]){
return true;
}
}
$c=0;
while (list ($index, $recipient) = each ($recipients) ){
if(preg_match("#(.+?)@(.+)#",$recipient,$re)){
$domain=trim(strtolower($re[2]));
if($GLOBALS["DebugArticaFilter"]==1){events("$recipient Found $domain local={$GLOBALS["LOCAL_DOMAINS"][$domain]}",__FUNCTION__,__LINE__);}
if($GLOBALS["LOCAL_DOMAINS"][$domain]){
if($GLOBALS["DebugArticaFilter"]==1){events("COUNT:: $c) $domain is an internal domain",__FUNCTION__,__LINE__);}
$c++;
}
}
}
if($GLOBALS["DebugArticaFilter"]==1){events("$c against {$GLOBALS["PostfixNotifyMessagesRestrictions"]}",__FUNCTION__,__LINE__);}
if($c>=$GLOBALS["PostfixNotifyMessagesRestrictions"]){return true;}
}
function writeMem(){
$date=date("Y-m-d");
while (list ($zdate, $array) = each ($GLOBALS["CACHE"]) ){
if($zdate<>$date){
events("Clean cache for day $zdate",__FUNCTION__,__LINE__);
unset($GLOBALS["CACHE"][$zdate]);
}
}
events("Memory: ".round(((memory_get_usage()/1024)/1000),2) ." Mb".__FUNCTION__,__LINE__);
@file_put_contents("/tmp/".basename(__FILE__).".cache.queues",serialize($GLOBALS["QUEUES"]));
@file_put_contents("/tmp/".basename(__FILE__).".cache",serialize($GLOBALS["CACHE"]));
@file_put_contents("/tmp/".basename(__FILE__).".internal.from",serialize($GLOBALS["INTERNAL_FROM"]));
}
function BlockQuotaFrom($from,$mailto,$size){
$from=trim(strtolower($from));
$mailto=trim(strtolower($mailto));
$date=date("Y-m-d");
$action=false;
$log=false;
if($from==$mailto){return false;}
if(preg_match("#(.+?)@(.+)#",$from,$re)){$domain_from=strtolower(trim($re[2]));}
if(!$GLOBALS["LOCAL_DOMAINS"][$domain_from]){
events("from=<$from> $domain_from not internal (on ". count($GLOBALS["LOCAL_DOMAINS"]). "domains",__FUNCTION__,__LINE__);
return false;
}
if(!is_array($GLOBALS["INTERNAL_FROM"][$from])){PopulateUser($from);}
if($GLOBALS["INTERNAL_FROM"][$from]["uid"]==null){return false;}
$uid=$GLOBALS["INTERNAL_FROM"][$from]["uid"];
if($GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES"]==null){$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES"]=0;}
if($GLOBALS["INTERNAL_FROM"][$uid]["MaxMailsDay"]>0){
$log=true;
$mem_quota=$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES"];
$mem_quota=$mem_quota+1;
$GLOBALS["CACHE"][$date][$uid]["MESSAGES"][]=date("Y-m-d H:i:s")." => $mailto (" .str_replace(" ",FormatBytes($size/1024)," ").")";
if($mem_quota>=$GLOBALS["INTERNAL_FROM"][$uid]["MaxMailsDay"]){$action=true;}
$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES"]=$mem_quota;
}
if($GLOBALS["INTERNAL_FROM"][$uid]["MaxMailDaySize"]>0){
$log=true;
$mem_quota=$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES_SIZE"];
$mem_quota=$mem_quota+$size;
if($mem_quota>=$GLOBALS["INTERNAL_FROM"][$uid]["MaxMailDaySize"]){$action=true;}
$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES_SIZE"]=$mem_quota;
}else{
$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES_SIZE"]=$size;
}
if($log){
events("from=<$from> ($uid) to=<$mailto> notify={$GLOBALS["INTERNAL_FROM"][$uid]["OnlyNotify"]} , quota message(s): {$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES"]}, size:{$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES_SIZE"]}",__FUNCTION__,__LINE__);
}
if($action){
if($GLOBALS["INTERNAL_FROM"][$uid]["OnlyNotify"]==1){
events("Send notification and clean cache",__FUNCTION__,__FILE__);
$text[]="Messages count : {$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES"]}";
$text[]="Messages Size : {$GLOBALS["CACHE"][$date][$uid]["COUNT_MESSAGES_SIZE"]}";
$text[]="-------------------------------";
$text[]=@implode("\n",$GLOBALS["CACHE"][$date][$uid]["MESSAGES"]);
send_email_events("$uid exceed SMTP quotas",@implode("\n",$text),"postfix");
unset($GLOBALS["CACHE"][$date][$uid]);
return false;
}
return true;
}else{
return false;
}
}
function PopulateUser($from){
$ldap=new clladp();
$uid=$ldap->uid_from_email($from);
if($uid==null){
events("<$from> uid:$uid",__FUNCTION__,__LINE__);
$GLOBALS["INTERNAL_FROM"][$from]["uid"]=null;
$GLOBALS["INTERNAL_FROM"][$from]["MaxMailsDay"]=0;
$GLOBALS["INTERNAL_FROM"][$from]["MaxMailDaySize"]=0;
$GLOBALS["INTERNAL_FROM"][$from]["OnlyNotify"]=0;
return;
}
events("<$from> uid:$uid",__FUNCTION__,__LINE__);
$sql="SELECT * FROM postfix_sender_quotas WHERE uid='$uid'";
if($GLOBALS["DebugArticaFilter"]==1){events("$sql",__FUNCTION__,__LINE__);}
$q=new mysql();
$ligne=@mysql_fetch_array($q->QUERY_SQL($sql,'artica_backup'));
if(!$q->ok){events("$q->mysql_error",__FUNCTION__,__LINE__);}
$MaxMailsDay=$ligne["MaxMailsDay"];
$MaxMailDaySize=$ligne["MaxMailDaySize"];
$OnlyNotify=$ligne["OnlyNotify"];
if($MaxMailsDay==null){$MaxMailsDay=0;}
if($MaxMailDaySize==null){$MaxMailDaySize=0;}
if($OnlyNotify==null){$OnlyNotify=1;}
if($MaxMailDaySize>0){$MaxMailDaySize=$MaxMailDaySize*1024;$MaxMailDaySize=$MaxMailDaySize*1000;}
$GLOBALS["INTERNAL_FROM"][$from]["uid"]=$uid;
$GLOBALS["INTERNAL_FROM"][$uid]["MaxMailsDay"]=$MaxMailsDay;
$GLOBALS["INTERNAL_FROM"][$uid]["MaxMailDaySize"]=$MaxMailDaySize;
$GLOBALS["INTERNAL_FROM"][$uid]["OnlyNotify"]=$OnlyNotify;
}
/**
* Signal handler
*/
function sig_handler($sig){
events("sig_handler:$sig",__FUNCTION__,__LINE__);
switch($sig){
case SIGTERM:
exit();
break;
case SIGHUP:
events("Refresh settings",__FUNCTION__,__LINE__);
@file_put_contents("/tmp/".basename(__FILE__).".internal.from",serialize(array()));;
PopulateMyDomains();
break;
case SIGINT:
exit();
break;
case SIGCHLD:
pcntl_waitpid(-1, $status);
break;
}
}
function start_daemon(){
$pid = pcntl_fork();
if ($pid == -1){
events("fork failure!",__FUNCTION__,__LINE__);
exit();
}elseif ($pid){
exit();
}
else{
events("fork success",__FUNCTION__,__LINE__);
posix_setsid();
chdir('/');
umask(0);
return posix_getpid();
}
}
function PopulateMyDomains(){
unset($GLOBALS["LOCAL_DOMAINS"]);
$ldap=new clladp();
$doms=$ldap->hash_get_all_domains();
while (list ($num, $ligne) = each ($doms) ){
events("Internal domain: $num",__FUNCTION__,__LINE__);
$GLOBALS["LOCAL_DOMAINS"][trim(strtolower($num))]=true;
}
@file_put_contents("/tmp/".basename(__FILE__).".domains",serialize($GLOBALS["LOCAL_DOMAINS"]));
}
function point_events($postfix_id=null,$smtp_sender=null,$from=null,$to=null,$error=null,$mailsize=0){
if($postfix_id==null){
if($GLOBALS["DebugArticaFilter"]==1){events("postfix_id is null",__FUNCTION__,__LINE__);}
return;
}
@mkdir("/var/log/artica-postfix/RTM",null,true);
$file="/var/log/artica-postfix/RTM/$postfix_id.msg";
if($GLOBALS["DebugArticaFilter"]==1){events("Loading monitor file $file",__FUNCTION__,__LINE__);}
$ini=new Bs_IniHandler($file);
if($GLOBALS["DebugArticaFilter"]==1){events("populate monitor file $file",__FUNCTION__,__LINE__);}
if($smtp_sender<>null){$ini->set("TIME","smtp_sender",$smtp_sender);}
if($from<>null){$ini->set("TIME","mailfrom",$from);}
$ini->set("TIME","mailto","$to");
$ini->set("TIME","time_end",date("Y-m-d H:i:s"));
$ini->set("TIME","message-id",$postfix_id);
$ini->set("TIME","mailsize",$mailsize);
if($error==null){
$ini->set("TIME","bounce_error","Success");
$ini->set("TIME","delivery_success","yes");
}else{
$ini->set("TIME","bounce_error","$error");
$ini->set("TIME","delivery_success","no");
}
if($GLOBALS["DebugArticaFilter"]==1){events("save monitor file $file",__FUNCTION__,__LINE__);}
$ini->saveFile($file);
}
function events($text,$function,$line=0){
$pid=@getmypid();
$date=@date("H:i:s");
$logFile="/var/log/artica-filter/daemon.log";
$size=@filesize($logFile);
if($size>1000000){@unlink($logFile);}
$f = @fopen($logFile, 'a');
$text="[$pid] $date $function:: $text (L.$line)\n";
if($GLOBALS["VERBOSE"]){echo $text;}
@fwrite($f, $text);
@fclose($f);
}
?>