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diff --git a/library/rating_server.php b/library/rating_server.php
index 45c5ea6..768d557 100644
--- a/library/rating_server.php
+++ b/library/rating_server.php
@@ -1,729 +1,732 @@
<?php
if (function_exists('pcntl_async_signals')) {
pcntl_async_signals(true);
} else {
declare(ticks = 1);
}
function signalHandler($sig)
{
$log = sprintf("Received signal %s", $sig);
syslog(LOG_NOTICE, $log);
switch ($sig) {
case SIGTERM:
syslog(LOG_NOTICE, "Rating Engine is exiting ...");
exit(0);
case SIGKILL:
syslog(LOG_NOTICE, "Rating Engine is exiting ...");
exit(0);
case SIGUSR1:
break;
default:
// handle all other signals
}
}
class Daemon
{
public function __construct($pidFile = false)
{
$this->pidFile = $pidFile;
}
public function start()
{
if ($this->pidFile !== false && file_exists($this->pidFile)) {
$pf = fopen($this->pidFile, 'r');
if (!$pf) {
$log = sprintf("Error: Unable to read pidfile %s\n", $this->pidFile);
syslog(LOG_NOTICE, $log);
print $log;
exit(-1);
}
$c = fgets($pf);
fclose($pf);
if ($c === false) {
$log = sprintf("Error: Unable to read pidfile %s\n", $this->pidFile);
syslog(LOG_NOTICE, $log);
print $log;
exit(-1);
}
$pid = intval($c);
if (posix_kill($pid, 0) === true) {
$log = sprintf("Error: Another process is already running on pid %d\n", $pid);
syslog(LOG_NOTICE, $log);
print $log;
exit(-1);
}
}
// do the Unix double fork magic
$pid = pcntl_fork();
if ($pid == -1) {
$log=sprintf("Error: Couldn't fork!\n");
syslog(LOG_NOTICE, $log);
print $log;
exit(-1);
}
if ($pid > 0) {
// this is the parent. nothing to do
exit(0);
}
// decouple from the parent environment
chdir('/');
if (posix_setsid() == -1) {
$log=sprintf("Error: Could not detach from terminal\n");
syslog(LOG_NOTICE, $log);
print $log;
exit(-1);
}
umask(022);
// and now the second fork
$pid = pcntl_fork();
if ($pid == -1) {
$log = sprintf("Error: Couldn't fork!\n");
syslog(LOG_NOTICE, $log);
print $log;
exit(-1);
}
if ($pid > 0) {
// this is the parent. nothing to do
exit(0);
}
// this doesn't really work. it seems php is unable to close these
//fclose(STDIN);
//fclose(STDOUT);
//fclose(STDERR);
if ($this->pidFile) {
$pf = fopen($this->pidFile, 'w');
if ($pf === false) {
$log = sprintf("Error: Unable to write pidfile %s\n", $this->pidFile);
syslog(LOG_NOTICE, $log);
print $log;
exit(-1);
}
fwrite($pf, sprintf("%d\n", posix_getpid()));
fclose($pf);
register_shutdown_function(array(&$this, "removePid"));
}
//pcntl_signal(SIGCHLD, array(&$this, 'signalHandler'));
//pcntl_signal(SIGTERM, array(&$this, 'signalHandler'));
//pcntl_signal(SIGKILL, array(&$this, 'signalHandler'));
// for some reason these interfere badly with socket_select()
pcntl_signal(SIGTERM, "signalHandler", true);
// pcntl_signal(SIGKILL, "signalHandler", true);
pcntl_signal(SIGUSR1, "signalHandler", true);
}
private function removePid()
{
if (file_exists($this->pid)) unlink($this->pid);
}
}
/*
phpSocketDaemon 1.0
Copyright (C) 2006 Chris Chabot <chabotc@xs4all.nl>
See http://www.chabotc.nl/ for more information
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
class socketClient extends socketCDR
{
public $remote_address = null;
public $remote_port = null;
public $connecting = false;
public $disconnected = false;
public $read_buffer = '';
public $write_buffer = '';
public function connect($remote_address, $remote_port)
{
$this->connecting = true;
try {
parent::connect($remote_address, $remote_port);
} catch (socketException $e) {
echo "Caught exception: ".$e->getMessage()."\n";
}
}
public function write($buffer, $length = 4096)
{
$this->write_buffer .= $buffer;
$this->do_write();
}
public function do_write()
{
$length = strlen($this->write_buffer);
try {
$written = parent::write($this->write_buffer, $length);
if ($written < $length) {
$this->write_buffer = substr($this->write_buffer, $written);
} else {
$this->write_buffer = '';
}
$this->on_write();
return true;
} catch (socketException $e) {
$old_socket = ($this->socket instanceof \Socket ? spl_object_id($this->socket) : (int)$this->socket);
$this->close();
$this->socket = $old_socket;
$this->disconnected = true;
$this->on_disconnect();
return false;
}
return false;
}
public function read($length = 4096)
{
try {
$this->read_buffer .= parent::read($length);
$this->on_read();
} catch (socketException $e) {
$old_socket = ($this->socket instanceof \Socket ? spl_object_id($this->socket) : (int)$this->socket);
$this->close();
$this->socket = $old_socket;
$this->disconnected = true;
$this->on_disconnect();
}
}
public function on_connect() {}
public function on_disconnect() {}
public function on_read() {}
public function on_write() {}
public function on_timer() {}
}
class socketServer extends socketCDR
{
public $startTime;
protected $client_class;
public function __construct($client_class, $bind_address = 0, $bind_port = 0, $domain = AF_INET, $type = SOCK_STREAM, $protocol = SOL_TCP)
{
parent::__construct($bind_address, $bind_port, $domain, $type, $protocol);
$this->client_class = $client_class;
$this->listen();
if (!$bind_address) {
$bind_address_print='0.0.0.0';
} else {
$bind_address_print=$bind_address;
}
$this->startTime=time();
$log=sprintf("Rating Engine listening on %s:%s", $bind_address_print, $bind_port);
syslog(LOG_NOTICE, $log);
}
public function accept()
{
$client = new $this->client_class(parent::accept(), $this);
if (!is_subclass_of($client, 'socketServerClient')) {
throw new socketException("Invalid serverClient class specified! Has to be a subclass of socketServerClient");
}
$this->on_accept($client);
return $client;
}
// override if desired
public function on_accept(socketServerClient $client) {}
}
class socketServerClient extends socketClient
{
public $socket;
public $remote_address;
public $remote_port;
public $local_addr;
public $local_port;
+ public $parentServer;
+ public $ratingEngine;
+ public $ratingEngineSettings;
public function __construct($socket, $parentServer)
{
$this->socket = $socket;
$this->parentServer = &$parentServer;
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (!socket_getsockname($this->socket, $this->local_addr, $this->local_port)) {
throw new socketException("Could not retrieve local address & port: ".socket_strerror(socket_last_error($this->socket)));
} elseif (!socket_getpeername($this->socket, $this->remote_address, $this->remote_port)) {
throw new socketException("Could not retrieve remote address & port: ".socket_strerror(socket_last_error($this->socket)));
}
global $RatingEngineServer, $RatingEngine;
$this->ratingEngine = & $RatingEngineServer;
$this->ratingEngineSettings = $RatingEngine;
$this->set_non_block();
$this->on_connect();
}
}
class socketDaemon
{
public $servers = array();
public $clients = array();
public function create_server($server_class, $client_class, $bind_address = 0, $bind_port = 0)
{
$server = new $server_class($client_class, $bind_address, $bind_port);
if (!is_subclass_of($server, 'socketServer')) {
throw new socketException("Invalid server class specified! Has to be a subclass of socketServer");
}
$this->servers[$this->get_socket_id($server->socket)] = $server;
return $server;
}
public function create_client($client_class, $remote_address, $remote_port, $bind_address = 0, $bind_port = 0)
{
$client = new $client_class($bind_address, $bind_port);
if (!is_subclass_of($client, 'socketClient')) {
throw new socketException("Invalid client class specified! Has to be a subclass of socketClient");
}
$client->set_non_block(true);
$client->connect($remote_address, $remote_port);
$this->clients[$this->get_socket_id($client->socket)] = $client;
return $client;
}
private function get_socket_id($socket)
{
return $socket instanceof \Socket ? spl_object_id($socket) : (int)$socket;
}
private function create_read_set()
{
$ret = array();
foreach ($this->clients as $socket) {
$ret[] = $socket->socket;
}
foreach ($this->servers as $socket) {
$ret[] = $socket->socket;
}
return $ret;
}
private function create_write_set()
{
$ret = array();
foreach ($this->clients as $socket) {
if (!empty($socket->write_buffer) || $socket->connecting) {
$ret[] = $socket->socket;
}
}
foreach ($this->servers as $socket) {
if (!empty($socket->write_buffer)) {
$ret[] = $socket->socket;
}
}
return $ret;
}
private function create_exception_set()
{
$ret = array();
foreach ($this->clients as $socket) {
$ret[] = $socket->socket;
}
foreach ($this->servers as $socket) {
$ret[] = $socket->socket;
}
return $ret;
}
private function clean_sockets()
{
foreach ($this->clients as $socket) {
if ($socket->disconnected || !is_resource($socket->socket)) {
if (isset($this->clients[$this->get_socket_id($socket->socket)])) {
unset($this->clients[$this->get_socket_id($socket->socket)]);
}
}
}
}
private function get_class($socket)
{
if (isset($this->clients[$this->get_socket_id($socket)])) {
return $this->clients[$this->get_socket_id($socket)];
} elseif (isset($this->servers[$this->get_socket_id($socket)])) {
return $this->servers[$this->get_socket_id($socket)];
} else {
throw (new socketException("Could not locate socket class for $socket"));
}
}
public function process()
{
// if socketClient is in write set, and $socket->connecting === true, set connecting to false and call on_connect
$read_set = $this->create_read_set();
$write_set = $this->create_write_set();
$exception_set = $this->create_exception_set();
$event_time = time();
while (($events = socket_select($read_set, $write_set, $exception_set, 2)) !== false) {
if ($events > 0) {
foreach ($read_set as $socket) {
$socket = $this->get_class($socket);
if (is_subclass_of($socket, 'socketServer')) {
$client = $socket->accept();
$this->clients[$this->get_socket_id($client->socket)] = $client;
} elseif (is_subclass_of($socket, 'socketClient')) {
// regular on_read event
$socket->read();
}
}
foreach ($write_set as $socket) {
$socket = $this->get_class($socket);
if (is_subclass_of($socket, 'socketClient')) {
if ($socket->connecting === true) {
$socket->on_connect();
$socket->connecting = false;
}
$socket->do_write();
}
}
foreach ($exception_set as $socket) {
$socket = $this->get_class($socket);
if (is_subclass_of($socket, 'socketClient')) {
$socket->on_disconnect();
if (isset($this->clients[$this->get_socket_id($socket->socket)])) {
unset($this->clients[$this->get_socket_id($socket->socket)]);
}
}
}
}
if (time() - $event_time > 1) {
// only do this if more then a second passed, else we'd keep looping this for every bit received
foreach ($this->clients as $socket) {
$socket->on_timer();
}
$event_time = time();
}
$this->clean_sockets();
$read_set = $this->create_read_set();
$write_set = $this->create_write_set();
$exception_set = $this->create_exception_set();
}
}
}
class socketException extends Exception {
}
class socketCDR
{
public $socket;
public $bind_address;
public $bind_port;
public $domain;
public $type;
public $protocol;
public $local_addr;
public $local_port;
public $read_buffer = '';
public $write_buffer = '';
private function get_socket_id($socket)
{
return $socket instanceof \Socket ? spl_object_id($socket) : (int)$socket;
}
public function __construct($bind_address = 0, $bind_port = 0, $domain = AF_INET, $type = SOCK_STREAM, $protocol = SOL_TCP)
{
$this->bind_address = $bind_address;
$this->bind_port = $bind_port;
$this->domain = $domain;
$this->type = $type;
$this->protocol = $protocol;
if (($this->socket = @socket_create($domain, $type, $protocol)) === false) {
throw new socketException("Could not create socket: ".socket_strerror(socket_last_error($this->socket)));
}
if (!@socket_set_option($this->socket, SOL_SOCKET, SO_REUSEADDR, 1)) {
throw new socketException("Could not set SO_REUSEADDR: ".$this->get_error());
}
if (!@socket_bind($this->socket, $bind_address, $bind_port)) {
throw new socketException("Could not bind socket to [$bind_address - $bind_port]: ".socket_strerror(socket_last_error($this->socket)));
}
if (!@socket_getsockname($this->socket, $this->local_addr, $this->local_port)) {
throw new socketException("Could not retrieve local address & port: ".socket_strerror(socket_last_error($this->socket)));
}
$this->set_non_block(true);
}
public function __destruct()
{
if (is_resource($this->socket) || $this->socket instanceof \Socket) {
$this->close();
}
}
public function get_error()
{
$error = socket_strerror(socket_last_error($this->socket));
socket_clear_error($this->socket);
return $error;
}
public function close()
{
if (is_resource($this->socket) || $this->socket instanceof \Socket) {
@socket_shutdown($this->socket, 2);
@socket_close($this->socket);
}
$this->socket = $this->get_socket_id($this->socket);
}
public function write($buffer, $length = 4096)
{
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (($ret = @socket_write($this->socket, $buffer, $length)) === false) {
throw new socketException("Could not write to socket: ".$this->get_error());
}
return $ret;
}
public function read($length = 4096)
{
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (($ret = @socket_read($this->socket, $length, PHP_BINARY_READ)) == false) {
throw new socketException("Could not read from socket: ".$this->get_error());
}
return $ret;
}
public function connect($remote_address, $remote_port)
{
$this->remote_address = $remote_address;
$this->remote_port = $remote_port;
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (!@socket_connect($this->socket, $remote_address, $remote_port)) {
throw new socketException("Could not connect to {$remote_address} - {$remote_port}: ".$this->get_error());
}
}
public function listen($backlog = 128)
{
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (!@socket_listen($this->socket, $backlog)) {
throw new socketException("Could not listen to {$this->bind_address} - {$this->bind_port}: ".$this->get_error());
}
}
public function accept()
{
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (($client = socket_accept($this->socket)) === false) {
throw new socketException("Could not accept connection to {$this->bind_address} - {$this->bind_port}: ".$this->get_error());
}
return $client;
}
public function set_non_block()
{
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (!@socket_set_nonblock($this->socket)) {
throw new socketException("Could not set socket non_block: ".$this->get_error());
}
}
public function set_block()
{
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (!@socket_set_block($this->socket)) {
throw new socketException("Could not set socket non_block: ".$this->get_error());
}
}
public function set_recieve_timeout($sec, $usec)
{
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (!@socket_set_option($this->socket, SOL_SOCKET, SO_RCVTIMEO, array("sec" => $sec, "usec" => $usec))) {
throw new socketException("Could not set socket recieve timeout: ".$this->get_error());
}
}
public function set_reuse_address($reuse = true)
{
$reuse = $reuse ? 1 : 0;
if (!is_resource($this->socket) && !($this->socket instanceof \Socket)) {
throw new socketException("Invalid socket or resource");
} elseif (!@socket_set_option($this->socket, SOL_SOCKET, SO_REUSEADDR, $reuse)) {
throw new socketException("Could not set SO_REUSEADDR to '$reuse': ".$this->get_error());
}
}
}
class ratingEngineServer extends socketServer
{
public $requests = array();
public $connected_clients = array();
}
class ratingEngineClient extends socketServerClient
{
private function handle_request($request)
{
$this->parentServer->requests[$this->remote_address]++;
$b = microtime(true);
$output = $this->ratingEngine->processNetworkInput($request);
$output .= "\n\n";
if ($this->ratingEngineSettings['log_delay']) {
$e=microtime(true);
$d=$e-$b;
if ($d >= $this->ratingEngineSettings['log_delay']) {
$log = sprintf("%s request took %.4f seconds", $this->ratingEngine->method, $d);
syslog(LOG_NOTICE, $log);
}
}
return $output;
}
public function on_read()
{
$tinput = trim($this->read_buffer);
if ($tinput == 'exit' || $tinput =='quit') {
$this->on_disconnect();
$this->close();
} elseif (strtolower($tinput) == 'showclients') {
$output = '';
$j = 0;
$uptime=time()-$this->parentServer->startTime;
if (count($this->parentServer->connected_clients)) {
$output .= "\nClients:\n\n";
foreach ($this->parentServer->connected_clients as $_client) {
$j++;
$myself=$this->remote_address.":".$this->remote_port;
if ($_client == $myself) {
$output .= sprintf("%d. %s (myself)\n", $j, $_client);
} else {
$output .= sprintf("%d. %s\n", $j, $_client);
}
}
}
if (count($this->parentServer->requests)) {
$output .= "\nRequests:\n\n";
$requests=0;
foreach (array_keys($this->parentServer->requests) as $_client_ip) {
$output .= sprintf("%d requests from %s\n", $this->parentServer->requests[$_client_ip], $_client_ip);
$requests = $requests + $this->parentServer->requests[$_client_ip];
}
}
$output .= "\nStatistics:\n\n";
$output .= sprintf("Total requests: %d\n", $requests);
$output .= sprintf("Uptime: %d seconds\n", $uptime);
if ($uptime) $output .= sprintf("Load: %0.2f/s\n", $requests / $uptime);
$output .= "\n\n";
$this->write($output);
$this->read_buffer = '';
} elseif ($tinput) {
$this->write($this->handle_request($tinput));
$this->read_buffer = '';
}
}
public function on_connect() {
if ($this->remote_address != '127.0.0.1') {
if (is_array($this->ratingEngineSettings['allow'])) {
$allow_connection = false;
foreach ($this->ratingEngineSettings['allow'] as $_allow) {
if (preg_match("/^$_allow/", $this->remote_address)) {
$log = sprintf("Client %s allowed by server configuration %s", $this->remote_address, $_allow);
syslog(LOG_NOTICE, $log);
$allow_connection = true;
break;
}
}
if (!$allow_connection) {
$log = sprintf("Client %s disallowed by server configuration", $this->remote_address);
syslog(LOG_NOTICE, $log);
$this->close();
return true;
}
}
}
$_client = $this->remote_address.":".$this->remote_port;
$this->parentServer->connected_clients[] = $_client;
$this->parentServer->connected_clients = array_unique($this->parentServer->connected_clients);
$log = sprintf("Client connection from %s:%s", $this->remote_address, $this->remote_port);
syslog(LOG_NOTICE, $log);
}
public function on_disconnect() {
$new_clients = array();
foreach ($this->parentServer->connected_clients as $_client) {
$_connected_client=$this->remote_address.":".$this->remote_port;
if ($_connected_client == $_client) continue;
$new_clients[]=$_client;
}
$this->parentServer->connected_clients=array_unique($new_clients);
$log = sprintf("Client disconnection from %s:%s", $this->remote_address, $this->remote_port);
syslog(LOG_NOTICE, $log);
}
public function on_write() {
}
public function on_timer() {
}
}
?>

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